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Gas constant

Source ๐Ÿ“

619: 3289: 3241: 1559: 1272: 1986: 1261: 2436: 1554:{\displaystyle R={\frac {{\dfrac {\mathrm {force} }{(\mathrm {length} )^{2}}}\times (\mathrm {length} )^{3}}{\mathrm {amount} \times \mathrm {temperature} }}={\frac {\mathrm {force} \times \mathrm {length} }{\mathrm {amount} \times \mathrm {temperature} }}} 1813: 3039:
in the constant. The USSA1976 acknowledges that this value is not consistent with the cited values for the Avogadro constant and the Boltzmann constant. This disparity is not a significant departure from accuracy, and USSA1976 uses this value of
1666: 1828: 1117: 3056:
at 11 kilometres (the equivalent of a difference of only 17.4 centimetres or 6.8 inches) and 0.292 Pa at 20 km (the equivalent of a difference of only 33.8 cm or 13.2 in).
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who reported it first on 12 September 1874. Using his extensive measurements of the properties of gases, Mendeleev also calculated it with high precision, within 0.3% of its modern value.
1687:), and any system of units designating a mole or a similar pure number that allows an equation of macroscopic mass and fundamental particle numbers in a system, such as an ideal gas (see 2096: 974: 1083: 2164: 2680:
Just as the molar gas constant can be related to the Boltzmann constant, so can the specific gas constant by dividing the Boltzmann constant by the molecular mass of the gas:
1709: 721:. Thus, the value of the gas constant ultimately derives from historical decisions and accidents in the setting of units of energy, temperature and amount of substance. The 799: 2882:
to distinguish it. In any case, the context and/or unit of the gas constant should make it clear as to whether the universal or specific gas constant is being referred to.
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to represent the constant is elusive. The universal gas constant was apparently introduced independently by Clausius' student, A.F. Horstmann (1873) and
3394: 1981:{\displaystyle R={\frac {\mathrm {mass} \times \mathrm {length} ^{2}}{\mathrm {amount} \times \mathrm {temperature} \times (\mathrm {time} )^{2}}}} 1256:{\displaystyle R={\frac {{\dfrac {\mathrm {force} }{\mathrm {area} }}\times \mathrm {volume} }{\mathrm {amount} \times \mathrm {temperature} }}} 3085: 3045: 2762:'s relation relates the specific gas constant to the specific heat capacities for a calorically perfect gas and a thermally perfect gas: 3316: 867:
are defined with exact numerical values when expressed in SI units. As a consequence, the SI value of the molar gas constant is exact.
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Mendeleev, Dmitri I. (September 12, 1874). "An exert from the Proceedings of the Chemical Society's Meeting on Sept. 12, 1874".
888:, whose accurate experimental data were used to calculate the early value of the constant. However, the origin of the letter 2617: 2431:{\displaystyle c_{\mathrm {a} }(0,T)={\sqrt {\frac {\gamma _{0}RT}{A_{\mathrm {r} }(\mathrm {Ar} )M_{\mathrm {u} }}}},} 2173:
is the number of particles (molecules in this case), or to generalize to an inhomogeneous system the local form holds:
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were similarly determined, which separately relate energy to temperature and particle count to amount of substance.
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Also note that this was well before the 2019 SI redefinition, through which the constant was given an exact value.
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It is common, especially in engineering applications, to represent the specific gas constant by the symbol
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is work per mole per degree. It may be expressed in any set of units representing work or energy (such as
3647: 3448: 1808:{\displaystyle \mathrm {force} ={\frac {\mathrm {mass} \times \mathrm {length} }{(\mathrm {time} )^{2}}}} 714: 3112:. NIST Special Publication 330. Gaithersburg, Maryland: National Institute of Standards and Technology. 1045: 2122: 618: 3570: 3540: 1009: 766: 2998: 1111:
As pressure is defined as force per area of measurement, the gas equation can also be written as:
3662: 3525: 2759: 2509: 853: 3441: 2859: 365: 2291: 885: 3267: 3155: 1661:{\displaystyle R={\frac {\mathrm {work} }{\mathrm {amount} \times \mathrm {temperature} }}} 398: 3182:"Ask the Historian: The Universal Gas Constant โ€” Why is it represented by the letter 8: 3606: 3545: 3510: 2452: 993: 718: 717:
that relates the energy scale in physics to the temperature scale and the scale used for
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Moran, Michael J.; Shapiro, Howard N.; Boettner, Daisie D.; Bailey, Margaret B. (2018).
3271: 3159: 2876:. In such cases, the universal gas constant is usually given a different symbol such as 3642: 3484: 3388: 3121: 2023: 1697: 747: 722: 703: 659: 463: 433: 402: 373: 340: 3424:โ€“ Ideal gas calculator provides the correct information for the moles of gas involved. 3288: 3240: 3107: 698:
that is featured in many fundamental equations in the physical sciences, such as the
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now has an exact value defined in terms of other exactly defined physical constants.
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is the mass-specific gas constant. The gas constant is expressed in the same unit as
737: 726: 695: 687: 602: 495: 332: 3351: 2036:) may be used in place of the molar gas constant by working in pure particle count, 3611: 3596: 3275: 3163: 3113: 893: 683: 3580: 3560: 3420: 3340:(3 ed.). National Aeronautics and Space Administration. 1962. pp. 7โ€“11. 707: 3601: 3077: 2264: 2248: 679: 27:
Physical constant equivalent to the Boltzmann constant, but in different units
3636: 3621: 3535: 3117: 3053: 2921: 2303: 2113: 1992: 1684: 879: 699: 467: 437: 421: 406: 377: 344: 228: 192: 108: 3575: 2558: 1679:), units representing degrees of temperature on an absolute scale (such as 3555: 3464: 2574: 2570: 2554: 1105: 667: 610: 598: 569: 536: 503: 459: 429: 369: 336: 308: 272: 236: 200: 156: 116: 104: 80: 3550: 2604: 1020: 300: 264: 3167: 3383:. U.S. Government Printing Office, Washington, D.C. NOAA-S/T 76-1562. 3280: 3255: 3044:
for all the calculations of the standard atmosphere. When using the
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Some have suggested that it might be appropriate to name the symbol
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Instead of a mole the constant can be expressed by considering the
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Area and volume are (length) and (length) respectively. Therefore:
981: 140: 3530: 2254: 882: 561: 3433: 2904: 1680: 663: 606: 565: 532: 499: 304: 268: 232: 196: 152: 148: 112: 76: 2484:= 273.16 K by the definition of the kelvin at that time; 2283: 1676: 524: 491: 260: 224: 188: 144: 72: 2841:{\displaystyle R_{\rm {specific}}=c_{\rm {p}}-c_{\rm {v}}\ } 3520: 3236:
D. Mendeleev. On the elasticity of gases. 1875 (in Russian)
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Journal of Russian Chemical-Physical Society, Chemical Part
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Note the use of the kilomole, with the resulting factor of
2748:{\displaystyle R_{\rm {specific}}={\frac {k_{\rm {B}}}{m}}} 2017: 1001: 678:. The constant is also a combination of the constants from 528: 455: 3314: 2758:
Another important relationship comes from thermodynamics.
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Individual Gas Constants and the Universal Gas Constant
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The NIST Reference on Constants, Units, and Uncertainty
3052:, the calculated pressure increases by only 0.62  2869:
is the specific heat capacity for a constant volume.
2771: 2689: 2620: 2330: 2182: 2125: 2053: 1831: 1712: 1573: 1286: 1275: 1131: 1120: 1048: 905: 769: 2603:) is given by the molar gas constant divided by the 623:
Heating-gas-at-constant-pressure-and-constant-volume
674:, rather than energy per temperature increment per 2885:In case of air, using the perfect gas law and the 2840: 2747: 2669: 2430: 2221: 2158: 2090: 1980: 1807: 1660: 1553: 1255: 1077: 968: 793: 2670:{\displaystyle R_{\rm {specific}}={\frac {R}{M}}} 3634: 3373: 3105: 2493:(Ar) is the relative atomic mass of argon and 2255:Measurement and replacement with defined value 2222:{\displaystyle P=\rho _{\rm {N}}k_{\rm {B}}T,} 899:The gas constant occurs in the ideal gas law: 3449: 1100:is number of moles of a given substance, and 3393:: CS1 maint: multiple names: authors list ( 3303:Hypersonic and High-Temperature Gas Dynamics 3256:"Mendeleef's researches on Mariotte's law 1" 3174: 2963:. Then the molar mass of air is computed by 2259:As of 2006, the most precise measurement of 3369: 3367: 3325: 3321:(9th ed.). Hoboken, New Jersey: Wiley. 3001:, 1976 (USSA1976) defines the gas constant 2992: 2091:{\displaystyle R=N_{\rm {A}}k_{\rm {B}},\,} 969:{\displaystyle PV=nRT=mR_{\rm {specific}}T} 3456: 3442: 3318:Fundamentals of Engineering Thermodynamics 3070: 3308: 3279: 3253: 3220: 3214: 3201: 3195: 3142:(July 2003). "The Universal Gas Constant 3106:Newell, David B.; Tiesinga, Eite (2019). 2087: 3364: 3247: 2519: 2018:Relationship with the Boltzmann constant 617: 3254:Mendeleev, Dmitri I. (March 22, 1877). 3078:"2022 CODATA Value: molar gas constant" 2116:in terms of the Boltzmann constant is: 14: 3635: 3138: 3109:The International System of Units (SI) 3437: 3399:Part 1, p. 3, (Linked file is 17 Meg) 3305:, AIAA Education Series, 2nd Ed, 2006 3132: 3099: 3334:Manual of the US Standard Atmosphere 2585:for dry air of 28.964917 g/mol. 2321:is then obtained from the relation: 658:. It is the molar equivalent to the 2471:for monatomic gases such as argon); 2263:had been obtained by measuring the 2040:, rather than amount of substance, 24: 2829: 2814: 2799: 2796: 2793: 2790: 2787: 2784: 2781: 2778: 2734: 2717: 2714: 2711: 2708: 2705: 2702: 2699: 2696: 2648: 2645: 2642: 2639: 2636: 2633: 2630: 2627: 2415: 2402: 2399: 2389: 2337: 2207: 2195: 2144: 2078: 2066: 1961: 1958: 1955: 1952: 1941: 1938: 1935: 1932: 1929: 1926: 1923: 1920: 1917: 1914: 1911: 1903: 1900: 1897: 1894: 1891: 1888: 1875: 1872: 1869: 1866: 1863: 1860: 1851: 1848: 1845: 1842: 1788: 1785: 1782: 1779: 1769: 1766: 1763: 1760: 1757: 1754: 1746: 1743: 1740: 1737: 1726: 1723: 1720: 1717: 1714: 1651: 1648: 1645: 1642: 1639: 1636: 1633: 1630: 1627: 1624: 1621: 1613: 1610: 1607: 1604: 1601: 1598: 1592: 1589: 1586: 1583: 1544: 1541: 1538: 1535: 1532: 1529: 1526: 1523: 1520: 1517: 1514: 1506: 1503: 1500: 1497: 1494: 1491: 1484: 1481: 1478: 1475: 1472: 1469: 1461: 1458: 1455: 1452: 1449: 1435: 1432: 1429: 1426: 1423: 1420: 1417: 1414: 1411: 1408: 1405: 1397: 1394: 1391: 1388: 1385: 1382: 1365: 1362: 1359: 1356: 1353: 1350: 1325: 1322: 1319: 1316: 1313: 1310: 1301: 1298: 1295: 1292: 1289: 1246: 1243: 1240: 1237: 1234: 1231: 1228: 1225: 1222: 1219: 1216: 1208: 1205: 1202: 1199: 1196: 1193: 1186: 1183: 1180: 1177: 1174: 1171: 1160: 1157: 1154: 1151: 1146: 1143: 1140: 1137: 1134: 1078:{\displaystyle R={\frac {PV}{nT}}} 957: 954: 951: 948: 945: 942: 939: 936: 782: 25: 3674: 3463: 3406: 2159:{\displaystyle PV=Nk_{\rm {B}}T,} 1703:Otherwise, we can also say that: 3287: 3239: 2596:of a gas or a mixture of gases ( 2306:to the zero-pressure limit  3344: 3225:. A.M. Kotomin, St.-Petersburg. 2896:= 1.225 kg/m, temperature 3377:U.S. Standard Atmosphere, 1976 3295: 3229: 2406: 2395: 2355: 2343: 1966: 1948: 1793: 1775: 1370: 1346: 1330: 1306: 794:{\displaystyle R=N_{\rm {A}}k} 13: 1: 3221:Mendeleev, Dmitri I. (1875). 3063: 2887:standard sea-level conditions 1671:The physical significance of 1564:Since force ร— length = work: 1026: 2862:for a constant pressure and 7: 3223:On the elasticity of gases 715:constant of proportionality 644:) is denoted by the symbol 10: 3679: 2583:Based on a mean molar mass 3589: 3571:Thermodynamic temperature 3498: 3472: 3374:NOAA, NASA, USAF (1976). 2611:) of the gas or mixture: 2581: 1010:thermodynamic temperature 162: 45: 3118:10.6028/nist.sp.330-2019 2999:U.S. Standard Atmosphere 2993:U.S. Standard Atmosphere 2286:at the temperature  1818:Therefore, we can write 713:The gas constant is the 662:, expressed in units of 2510:2019 revision of the SI 2508:However, following the 2504:as defined at the time. 1031:From the ideal gas law 854:2019 revision of the SI 3352:"Standard Atmospheres" 2860:specific heat capacity 2842: 2749: 2671: 2432: 2223: 2160: 2092: 1982: 1809: 1662: 1555: 1257: 1079: 988:is the volume of gas, 970: 795: 638:universal gas constant 625: 3658:Statistical mechanics 3430:โ€“ Engineering Toolbox 2843: 2750: 2672: 2594:specific gas constant 2520:Specific gas constant 2433: 2292:triple point of water 2224: 2161: 2093: 1983: 1810: 1663: 1556: 1258: 1080: 971: 886:Henri Victor Regnault 796: 668:temperature increment 621: 3414:Ideal gas calculator 2769: 2687: 2618: 2477:is the temperature, 2328: 2180: 2123: 2051: 1991:And so, in terms of 1829: 1710: 1571: 1273: 1118: 1046: 903: 767: 3653:Amount of substance 3546:Amount of substance 3511:Molar concentration 3499:Physical quantities 3272:1877Natur..15..498D 3160:2003JChEd..80..731J 2889:(SSL) (air density 2453:heat capacity ratio 2112:. For example, the 2013: kgโ‹…mโ‹…sโ‹…Kโ‹…mol. 994:amount of substance 719:amount of substance 672:amount of substance 632:(also known as the 3648:Physical constants 3506:Mass concentration 3485:Boltzmann constant 3419:2012-07-15 at the 3140:Jensen, William B. 3021:10 Nโ‹…mโ‹…kmolโ‹…K 2838: 2745: 2667: 2428: 2219: 2156: 2088: 2024:Boltzmann constant 1978: 1805: 1698:normal cubic metre 1658: 1551: 1341: 1253: 1165: 1075: 966: 791: 748:Boltzmann constant 746:multiplied by the 736:is defined as the 723:Boltzmann constant 704:Arrhenius equation 660:Boltzmann constant 642:ideal gas constant 630:molar gas constant 626: 164:Other common units 18:Molar gas constant 3630: 3629: 3480:Avogadro constant 3168:10.1021/ed080p731 2837: 2743: 2665: 2590: 2589: 2423: 2422: 2110:Avogadro constant 1976: 1803: 1690:Avogadro constant 1656: 1549: 1440: 1340: 1251: 1164: 1073: 878:in honour of the 876:Regnault constant 738:Avogadro constant 732:The gas constant 727:Avogadro constant 696:physical constant 616: 615: 16:(Redirected from 3670: 3612:Combined gas law 3607:Gay-Lussac's law 3458: 3451: 3444: 3435: 3434: 3400: 3398: 3392: 3384: 3382: 3371: 3362: 3361: 3359: 3358: 3348: 3342: 3341: 3339: 3329: 3323: 3322: 3312: 3306: 3299: 3293: 3292: 3291: 3285: 3283: 3281:10.1038/015498a0 3266:(388): 498โ€“500. 3251: 3245: 3244: 3243: 3233: 3227: 3226: 3218: 3212: 3211: 3199: 3193: 3192: 3190: 3178: 3172: 3171: 3136: 3130: 3129: 3103: 3097: 3096: 3094: 3093: 3074: 3038: 3030: 3028: 3022: 3020: 3017: 2988: 2986: 2962: 2960: 2957: 2925:), we have that 2924: 2919: 2880: 2847: 2845: 2844: 2839: 2835: 2834: 2833: 2832: 2819: 2818: 2817: 2804: 2803: 2802: 2754: 2752: 2751: 2746: 2744: 2739: 2738: 2737: 2727: 2722: 2721: 2720: 2676: 2674: 2673: 2668: 2666: 2658: 2653: 2652: 2651: 2586: 2524: 2523: 2503: 2470: 2468: 2467: 2464: 2461: 2437: 2435: 2434: 2429: 2424: 2421: 2420: 2419: 2418: 2405: 2394: 2393: 2392: 2381: 2374: 2373: 2363: 2362: 2342: 2341: 2340: 2317:). The value of 2228: 2226: 2225: 2220: 2212: 2211: 2210: 2200: 2199: 2198: 2165: 2163: 2162: 2157: 2149: 2148: 2147: 2097: 2095: 2094: 2089: 2083: 2082: 2081: 2071: 2070: 2069: 2012: 2010: 2007: 1987: 1985: 1984: 1979: 1977: 1975: 1974: 1973: 1964: 1944: 1906: 1885: 1884: 1883: 1878: 1854: 1839: 1814: 1812: 1811: 1806: 1804: 1802: 1801: 1800: 1791: 1773: 1772: 1749: 1734: 1729: 1667: 1665: 1664: 1659: 1657: 1655: 1654: 1616: 1595: 1581: 1560: 1558: 1557: 1552: 1550: 1548: 1547: 1509: 1488: 1487: 1464: 1446: 1441: 1439: 1438: 1400: 1379: 1378: 1377: 1368: 1342: 1339: 1338: 1337: 1328: 1304: 1287: 1283: 1262: 1260: 1259: 1254: 1252: 1250: 1249: 1211: 1190: 1189: 1166: 1163: 1149: 1132: 1128: 1084: 1082: 1081: 1076: 1074: 1072: 1064: 1056: 980:is the absolute 975: 973: 972: 967: 962: 961: 960: 894:Dmitri Mendeleev 846: 844: 841: 838: 835: 827: 825: 822: 816: 814: 811: 808: 800: 798: 797: 792: 787: 786: 785: 692:Gay-Lussac's law 657: 656: 649: 595: 593: 589: 586: 583: 580: 558: 556: 553: 550: 547: 521: 520: 517: 514: 488: 487: 484: 481: 478: 452: 451: 448: 418: 417: 395: 394: 391: 388: 362: 361: 358: 355: 329: 328: 325: 322: 319: 297: 295: 292: 289: 286: 283: 257: 256: 253: 250: 247: 221: 220: 217: 214: 211: 185: 184: 181: 178: 174: 137: 136: 133: 130: 127: 101: 100: 97: 94: 91: 69: 68: 65: 62: 59: 38: 30: 29: 21: 3678: 3677: 3673: 3672: 3671: 3669: 3668: 3667: 3633: 3632: 3631: 3626: 3585: 3581:Specific volume 3561:Particle number 3494: 3468: 3462: 3421:Wayback Machine 3409: 3404: 3403: 3386: 3385: 3380: 3372: 3365: 3356: 3354: 3350: 3349: 3345: 3337: 3331: 3330: 3326: 3313: 3309: 3300: 3296: 3286: 3252: 3248: 3238: 3234: 3230: 3219: 3215: 3200: 3196: 3188: 3180: 3179: 3175: 3137: 3133: 3104: 3100: 3091: 3089: 3076: 3075: 3071: 3066: 3036: 3026: 3024: 3018: 3015: 3013: 2995: 2984: 2982: 2980: 2969: 2958: 2955: 2953: 2951: 2945: 2938: 2931: 2917: 2915: 2913: 2902: 2895: 2878: 2868: 2857: 2828: 2827: 2823: 2813: 2812: 2808: 2777: 2776: 2772: 2770: 2767: 2766: 2733: 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3343: 3324: 3307: 3294: 3246: 3228: 3213: 3194: 3173: 3131: 3098: 3068: 3067: 3065: 3062: 3033: 3032: 2994: 2991: 2978: 2967: 2949: 2943: 2936: 2929: 2911: 2903:= 288.15  2900: 2893: 2866: 2855: 2849: 2848: 2831: 2826: 2822: 2816: 2811: 2807: 2801: 2798: 2795: 2792: 2789: 2786: 2783: 2780: 2775: 2756: 2755: 2742: 2736: 2731: 2725: 2719: 2716: 2713: 2710: 2707: 2704: 2701: 2698: 2693: 2678: 2677: 2664: 2661: 2656: 2650: 2647: 2644: 2641: 2638: 2635: 2632: 2629: 2624: 2600: 2588: 2587: 2579: 2578: 2567: 2563: 2562: 2551: 2547: 2546: 2543: 2539: 2538: 2535: 2530: 2521: 2518: 2506: 2505: 2502:10 kgโ‹…mol 2497: 2490: 2485: 2481: 2472: 2448: 2439: 2438: 2427: 2417: 2412: 2408: 2404: 2401: 2397: 2391: 2386: 2380: 2377: 2372: 2368: 2360: 2357: 2354: 2351: 2348: 2345: 2339: 2334: 2310: 2271: 2265:speed of sound 2256: 2253: 2249:number density 2236: 2230: 2229: 2218: 2215: 2209: 2204: 2197: 2192: 2188: 2185: 2167: 2166: 2155: 2152: 2146: 2141: 2137: 2134: 2131: 2128: 2105: 2099: 2098: 2086: 2080: 2075: 2068: 2063: 2059: 2056: 2029: 2019: 2016: 2015: 2014: 1989: 1988: 1972: 1968: 1963: 1960: 1957: 1954: 1950: 1947: 1943: 1940: 1937: 1934: 1931: 1928: 1925: 1922: 1919: 1916: 1913: 1909: 1905: 1902: 1899: 1896: 1893: 1890: 1882: 1877: 1874: 1871: 1868: 1865: 1862: 1857: 1853: 1850: 1847: 1844: 1837: 1834: 1816: 1815: 1799: 1795: 1790: 1787: 1784: 1781: 1777: 1771: 1768: 1765: 1762: 1759: 1756: 1752: 1748: 1745: 1742: 1739: 1732: 1728: 1725: 1722: 1719: 1716: 1669: 1668: 1653: 1650: 1647: 1644: 1641: 1638: 1635: 1632: 1629: 1626: 1623: 1619: 1615: 1612: 1609: 1606: 1603: 1600: 1594: 1591: 1588: 1585: 1579: 1576: 1562: 1561: 1546: 1543: 1540: 1537: 1534: 1531: 1528: 1525: 1522: 1519: 1516: 1512: 1508: 1505: 1502: 1499: 1496: 1493: 1486: 1483: 1480: 1477: 1474: 1471: 1467: 1463: 1460: 1457: 1454: 1451: 1444: 1437: 1434: 1431: 1428: 1425: 1422: 1419: 1416: 1413: 1410: 1407: 1403: 1399: 1396: 1393: 1390: 1387: 1384: 1376: 1372: 1367: 1364: 1361: 1358: 1355: 1352: 1348: 1345: 1336: 1332: 1327: 1324: 1321: 1318: 1315: 1312: 1308: 1303: 1300: 1297: 1294: 1291: 1281: 1278: 1264: 1263: 1248: 1245: 1242: 1239: 1236: 1233: 1230: 1227: 1224: 1221: 1218: 1214: 1210: 1207: 1204: 1201: 1198: 1195: 1188: 1185: 1182: 1179: 1176: 1173: 1169: 1162: 1159: 1156: 1153: 1148: 1145: 1142: 1139: 1136: 1126: 1123: 1086: 1085: 1071: 1068: 1063: 1060: 1054: 1051: 1028: 1025: 1016: 965: 959: 956: 953: 950: 947: 944: 941: 938: 933: 929: 926: 923: 920: 917: 914: 911: 908: 860: 850: 849: 848: 847: 828: 790: 784: 779: 775: 772: 757: 743: 688:Avogadro's law 614: 613: 596: 573: 572: 559: 540: 539: 522: 507: 506: 489: 471: 470: 453: 441: 440: 423: 419: 410: 409: 396: 381: 380: 363: 348: 347: 330: 312: 311: 298: 276: 275: 258: 240: 239: 222: 204: 203: 186: 167: 166: 160: 159: 138: 120: 119: 102: 84: 83: 70: 52: 51: 43: 42: 39: 26: 9: 6: 4: 3: 2: 3675: 3664: 3661: 3659: 3656: 3654: 3651: 3649: 3646: 3644: 3641: 3640: 3638: 3623: 3622:Ideal gas law 3620: 3618: 3615: 3613: 3610: 3608: 3605: 3603: 3600: 3598: 3597:Charles's law 3595: 3594: 3592: 3588: 3582: 3579: 3577: 3574: 3572: 3569: 3567: 3564: 3562: 3559: 3557: 3554: 3552: 3549: 3547: 3544: 3542: 3541:Mass fraction 3539: 3537: 3536:Mole fraction 3534: 3532: 3529: 3527: 3524: 3522: 3519: 3517: 3514: 3512: 3509: 3507: 3504: 3503: 3501: 3497: 3491: 3488: 3486: 3483: 3481: 3478: 3477: 3475: 3471: 3466: 3459: 3454: 3452: 3447: 3445: 3440: 3439: 3436: 3429: 3426: 3423: 3422: 3418: 3415: 3411: 3410: 3396: 3390: 3379: 3378: 3370: 3368: 3353: 3347: 3336: 3335: 3328: 3320: 3319: 3311: 3304: 3298: 3290: 3282: 3277: 3273: 3269: 3265: 3261: 3257: 3250: 3242: 3237: 3232: 3224: 3217: 3210:(7): 208โ€“209. 3209: 3205: 3198: 3187: 3185: 3177: 3169: 3165: 3161: 3157: 3153: 3149: 3148:J. Chem. Educ 3145: 3141: 3135: 3127: 3123: 3119: 3115: 3111: 3110: 3102: 3087: 3083: 3079: 3073: 3069: 3061: 3058: 3055: 3051: 3047: 3043: 3029: Jโ‹…Kโ‹…mol 3011: 3008: 3007: 3006: 3004: 3000: 2990: 2977: 2973: 2966: 2948: 2942: 2935: 2928: 2923: 2910: 2907:and pressure 2906: 2899: 2892: 2888: 2883: 2881: 2875: 2870: 2865: 2861: 2854: 2824: 2820: 2809: 2805: 2773: 2765: 2764: 2763: 2761: 2740: 2729: 2723: 2691: 2683: 2682: 2681: 2662: 2659: 2654: 2622: 2614: 2613: 2612: 2610: 2606: 2599: 2595: 2580: 2576: 2572: 2568: 2565: 2564: 2560: 2556: 2552: 2549: 2548: 2544: 2541: 2540: 2536: 2529: 2526: 2525: 2517: 2515: 2511: 2500: =  2496: 2489: 2486: 2480: 2476: 2473: 2454: 2447: 2444: 2443: 2442: 2425: 2410: 2384: 2378: 2375: 2370: 2366: 2358: 2352: 2349: 2346: 2332: 2324: 2323: 2322: 2320: 2316: 2309: 2305: 2304:extrapolating 2301: 2297: 2294:at different 2293: 2289: 2285: 2281: 2277: 2270: 2266: 2262: 2252: 2250: 2246: 2242: 2235: 2216: 2213: 2202: 2190: 2186: 2183: 2176: 2175: 2174: 2172: 2153: 2150: 2139: 2135: 2132: 2129: 2126: 2119: 2118: 2117: 2115: 2114:ideal gas law 2111: 2104: 2084: 2073: 2061: 2057: 2054: 2047: 2046: 2045: 2043: 2039: 2035: 2028: 2025: 2001: 1998: 1997: 1996: 1994: 1993:SI base units 1970: 1945: 1907: 1880: 1855: 1835: 1832: 1825: 1824: 1823: 1821: 1797: 1750: 1730: 1706: 1705: 1704: 1701: 1699: 1694: 1692: 1691: 1686: 1682: 1678: 1674: 1617: 1577: 1574: 1567: 1566: 1565: 1510: 1465: 1442: 1401: 1374: 1343: 1334: 1279: 1276: 1269: 1268: 1267: 1212: 1167: 1124: 1121: 1114: 1113: 1112: 1109: 1107: 1103: 1099: 1095: 1092:is pressure, 1091: 1069: 1066: 1061: 1058: 1052: 1049: 1042: 1041: 1040: 1038: 1034: 1024: 1022: 1015: 1011: 1007: 1003: 999: 995: 991: 987: 983: 979: 963: 931: 927: 924: 921: 918: 915: 912: 909: 906: 897: 895: 891: 887: 884: 881: 877: 873: 868: 866: 859: 855: 845: Jโ‹…Kโ‹…mol 829: 802: 801: 788: 777: 773: 770: 763: 762: 761: 756: 752: 749: 742: 739: 735: 730: 728: 724: 720: 716: 711: 709: 705: 701: 700:ideal gas law 697: 693: 689: 685: 684:Charles's law 681: 677: 673: 669: 665: 661: 655: 648: 643: 639: 635: 631: 624: 620: 612: 608: 604: 600: 597: 575: 574: 571: 567: 563: 560: 542: 541: 538: 534: 530: 526: 523: 509: 508: 505: 501: 497: 493: 490: 473: 472: 469: 465: 461: 457: 454: 443: 442: 439: 435: 431: 427: 420: 412: 411: 408: 404: 400: 397: 383: 382: 379: 375: 371: 367: 364: 350: 349: 346: 342: 338: 334: 331: 314: 313: 310: 306: 302: 299: 278: 277: 274: 270: 266: 262: 259: 242: 241: 238: 234: 230: 226: 223: 206: 205: 202: 198: 194: 190: 187: 169: 168: 165: 161: 158: 154: 150: 146: 142: 139: 122: 121: 118: 114: 110: 106: 103: 86: 85: 82: 78: 74: 71: 54: 53: 50: 49: 44: 40: 37: 32: 31: 19: 3576:Molar volume 3490:Gas constant 3489: 3412: 3376: 3355:. Retrieved 3346: 3333: 3327: 3317: 3310: 3302: 3297: 3263: 3259: 3249: 3231: 3222: 3216: 3207: 3203: 3197: 3183: 3176: 3151: 3147: 3143: 3134: 3108: 3101: 3090:. Retrieved 3081: 3072: 3059: 3049: 3041: 3034: 3009: 3002: 2996: 2975: 2971: 2964: 2961: JยทkgยทK 2946: 2940: 2933: 2926: 2908: 2897: 2890: 2884: 2877: 2873: 2871: 2863: 2852: 2850: 2757: 2679: 2608: 2597: 2593: 2591: 2534:for dry air 2527: 2513: 2507: 2494: 2487: 2478: 2474: 2445: 2440: 2318: 2314: 2307: 2299: 2287: 2279: 2275: 2268: 2260: 2258: 2244: 2240: 2233: 2231: 2170: 2168: 2102: 2100: 2041: 2037: 2033: 2026: 2021: 1999: 1990: 1819: 1817: 1702: 1695: 1688: 1672: 1670: 1563: 1265: 1110: 1101: 1097: 1093: 1089: 1087: 1036: 1032: 1030: 1013: 1005: 997: 989: 985: 977: 898: 889: 875: 871: 869: 864: 857: 851: 754: 750: 740: 733: 731: 712: 675: 653: 646: 641: 637: 634:gas constant 633: 629: 627: 622: 163: 46: 35: 3602:Boyle's law 3556:Atomic mass 2987: g/mol 2542:287.052874 1106:temperature 1096:is volume, 826:10 Jโ‹…K 815:10 mol 694:. It is a 680:Boyle's law 3637:Categories 3551:Molar mass 3357:2007-01-07 3301:Anderson, 3154:(7): 731. 3092:2024-05-18 3088:. May 2024 3064:References 2605:molar mass 1027:Dimensions 1021:molar heat 852:Since the 706:, and the 3643:Ideal gas 3473:Constants 3389:cite book 3126:242934226 3048:value of 2821:− 2566:1,716.46 2367:γ 2313:(0,  2296:pressures 2191:ρ 2044:, since: 1946:× 1908:× 1856:× 1751:× 1618:× 1511:× 1466:× 1402:× 1344:× 1213:× 1168:× 33:Value of 3566:Pressure 3516:Molality 3467:concepts 3417:Archived 2601:specific 2550:53.3523 2531:specific 1039:we get: 1017:specific 982:pressure 725:and the 676:particle 48:SI units 3531:Density 3268:Bibcode 3156:Bibcode 2954:287.052 2858:is the 2545:Jโ‹…kgโ‹…K 2469:⁠ 2457:⁠ 2451:is the 2441:where: 2290:of the 2278:,  2247:is the 2108:is the 1685:rankine 1008:is the 1000:is the 992:is the 883:chemist 856:, both 445:554.984 414:297.031 3526:Volume 3260:Nature 3124:  3054:pascal 2983:28.964 2920:  2851:where 2836:  2302:, and 2298:  2267:  2232:where 2169:where 2101:where 1681:kelvin 1677:joules 1088:where 1004:, and 976:where 880:French 702:, the 690:, and 664:energy 511:62.363 352:10.731 3381:(PDF) 3338:(PDF) 3189:(PDF) 3122:S2CID 3025:8.314 3014:8.314 2760:Mayer 2537:Unit 2284:argon 2282:) in 2004:8.314 832:8.314 819:1.380 805:6.022 640:, or 577:8.205 544:1.987 475:0.082 464:lbmol 434:lbmol 403:lbmol 385:1.985 374:lbmol 341:lbmol 316:0.730 280:8.314 244:0.083 208:8.314 124:8.314 88:8.314 56:8.314 41:Unit 3590:Laws 3521:Mass 3465:Mole 3395:link 3086:NIST 3037:1000 3005:as: 2997:The 2952:) = 2592:The 2577:โ‹…ยฐR 2575:slug 2561:โ‹…ยฐR 2022:The 1822:as: 1002:mass 874:the 863:and 753:(or 670:per 666:per 628:The 529:torr 456:torr 255:5324 175:.462 3276:doi 3164:doi 3146:". 3114:doi 3046:ISO 2985:917 2979:air 2959:247 2956:874 2930:air 2918:325 2916:101 2571:lbf 2569:ftโ‹… 2555:lbf 2553:ftโ‹… 2482:TPW 2011:... 2009:618 2006:462 1693:). 1683:or 1104:is 1037:nRT 840:153 837:618 834:462 821:649 807:140 760:): 650:or 611:mol 603:atm 590:... 585:095 582:608 579:736 570:mol 562:cal 557:... 552:640 549:258 546:204 537:mol 519:529 516:221 513:598 504:mol 496:atm 486:960 483:080 480:366 477:057 450:180 447:319 422:inH 416:214 399:BTU 393:009 390:279 387:875 366:psi 360:016 357:089 354:577 333:atm 327:273 324:295 321:507 318:240 309:mol 301:erg 288:153 285:618 282:462 273:mol 265:bar 252:181 249:626 246:144 237:mol 229:kPa 216:153 213:618 210:462 201:mol 180:153 177:618 173:314 157:mol 132:153 129:618 126:462 117:mol 96:153 93:618 90:462 81:mol 64:153 61:618 58:462 3639:: 3391:}} 3387:{{ 3366:^ 3274:. 3264:15 3262:. 3258:. 3208:VI 3206:. 3186:?" 3162:. 3152:80 3150:. 3120:. 3084:. 3080:. 3027:32 3023:= 3016:32 3012:= 2989:. 2981:= 2970:= 2939:/( 2932:= 2922:Pa 2914:= 2559:lb 2512:, 2251:. 2239:= 2002:= 1995:: 1700:. 1108:. 1035:= 1033:PV 1023:. 1012:. 996:, 984:, 843:24 830:= 817:ร— 810:76 803:= 710:. 686:, 682:, 636:, 594:10 588:96 555:83 468:ยฐR 460:ft 438:ยฐR 430:ft 407:ยฐR 378:ยฐR 370:ft 345:ยฐR 337:ft 296:10 291:24 219:24 193:Pa 183:24 141:kg 135:24 109:Pa 99:24 67:24 3457:e 3450:t 3443:v 3397:) 3360:. 3284:. 3278:: 3270:: 3191:. 3184:R 3170:. 3166:: 3158:: 3144:R 3128:. 3116:: 3095:. 3050:R 3042:R 3031:. 3019:ร— 3010:R 3003:R 2976:R 2974:/ 2972:R 2968:0 2965:M 2950:0 2947:T 2944:0 2941:ฯ 2937:0 2934:P 2927:R 2912:0 2909:p 2905:K 2901:0 2898:T 2894:0 2891:ฯ 2879:R 2874:R 2867:v 2864:c 2856:p 2853:c 2830:v 2825:c 2815:p 2810:c 2806:= 2800:c 2797:i 2794:f 2791:i 2788:c 2785:e 2782:p 2779:s 2774:R 2741:m 2735:B 2730:k 2724:= 2718:c 2715:i 2712:f 2709:i 2706:c 2703:e 2700:p 2697:s 2692:R 2663:M 2660:R 2655:= 2649:c 2646:i 2643:f 2640:i 2637:c 2634:e 2631:p 2628:s 2623:R 2609:M 2607:( 2598:R 2573:โ‹… 2557:โ‹… 2528:R 2514:R 2498:u 2495:M 2491:r 2488:A 2479:T 2475:T 2466:3 2463:/ 2460:5 2455:( 2449:0 2446:ฮณ 2426:, 2416:u 2411:M 2407:) 2403:r 2400:A 2396:( 2390:r 2385:A 2379:T 2376:R 2371:0 2359:= 2356:) 2353:T 2350:, 2347:0 2344:( 2338:a 2333:c 2319:R 2315:T 2311:a 2308:c 2300:P 2288:T 2280:T 2276:P 2274:( 2272:a 2269:c 2261:R 2245:V 2243:/ 2241:N 2237:N 2234:ฯ 2217:, 2214:T 2208:B 2203:k 2196:N 2187:= 2184:P 2171:N 2154:, 2151:T 2145:B 2140:k 2136:N 2133:= 2130:V 2127:P 2106:A 2103:N 2085:, 2079:B 2074:k 2067:A 2062:N 2058:= 2055:R 2042:n 2038:N 2034:k 2030:B 2027:k 2000:R 1971:2 1967:) 1962:e 1959:m 1956:i 1953:t 1949:( 1942:e 1939:r 1936:u 1933:t 1930:a 1927:r 1924:e 1921:p 1918:m 1915:e 1912:t 1904:t 1901:n 1898:u 1895:o 1892:m 1889:a 1881:2 1876:h 1873:t 1870:g 1867:n 1864:e 1861:l 1852:s 1849:s 1846:a 1843:m 1836:= 1833:R 1820:R 1798:2 1794:) 1789:e 1786:m 1783:i 1780:t 1776:( 1770:h 1767:t 1764:g 1761:n 1758:e 1755:l 1747:s 1744:s 1741:a 1738:m 1731:= 1727:e 1724:c 1721:r 1718:o 1715:f 1673:R 1652:e 1649:r 1646:u 1643:t 1640:a 1637:r 1634:e 1631:p 1628:m 1625:e 1622:t 1614:t 1611:n 1608:u 1605:o 1602:m 1599:a 1593:k 1590:r 1587:o 1584:w 1578:= 1575:R 1545:e 1542:r 1539:u 1536:t 1533:a 1530:r 1527:e 1524:p 1521:m 1518:e 1515:t 1507:t 1504:n 1501:u 1498:o 1495:m 1492:a 1485:h 1482:t 1479:g 1476:n 1473:e 1470:l 1462:e 1459:c 1456:r 1453:o 1450:f 1443:= 1436:e 1433:r 1430:u 1427:t 1424:a 1421:r 1418:e 1415:p 1412:m 1409:e 1406:t 1398:t 1395:n 1392:u 1389:o 1386:m 1383:a 1375:3 1371:) 1366:h 1363:t 1360:g 1357:n 1354:e 1351:l 1347:( 1335:2 1331:) 1326:h 1323:t 1320:g 1317:n 1314:e 1311:l 1307:( 1302:e 1299:c 1296:r 1293:o 1290:f 1280:= 1277:R 1247:e 1244:r 1241:u 1238:t 1235:a 1232:r 1229:e 1226:p 1223:m 1220:e 1217:t 1209:t 1206:n 1203:u 1200:o 1197:m 1194:a 1187:e 1184:m 1181:u 1178:l 1175:o 1172:v 1161:a 1158:e 1155:r 1152:a 1147:e 1144:c 1141:r 1138:o 1135:f 1125:= 1122:R 1102:T 1098:n 1094:V 1090:P 1070:T 1067:n 1062:V 1059:P 1053:= 1050:R 1014:R 1006:T 998:m 990:n 986:V 978:P 964:T 958:c 955:i 952:f 949:i 946:c 943:e 940:p 937:s 932:R 928:m 925:= 922:T 919:R 916:n 913:= 910:V 907:P 890:R 872:R 865:k 861:A 858:N 824:ร— 813:ร— 789:k 783:A 778:N 774:= 771:R 758:B 755:k 751:k 744:A 741:N 734:R 654:R 647:R 609:โ‹… 607:K 605:โ‹… 601:โ‹… 599:m 592:ร— 568:โ‹… 566:K 564:โ‹… 535:โ‹… 533:K 531:โ‹… 527:โ‹… 525:L 502:โ‹… 500:K 498:โ‹… 494:โ‹… 492:L 466:โ‹… 462:โ‹… 458:โ‹… 436:โ‹… 432:โ‹… 428:โ‹… 426:O 424:2 405:โ‹… 401:โ‹… 376:โ‹… 372:โ‹… 368:โ‹… 343:โ‹… 339:โ‹… 335:โ‹… 307:โ‹… 305:K 303:โ‹… 294:ร— 271:โ‹… 269:K 267:โ‹… 263:โ‹… 261:L 235:โ‹… 233:K 231:โ‹… 227:โ‹… 225:L 199:โ‹… 197:K 195:โ‹… 191:โ‹… 189:L 171:8 155:โ‹… 153:K 151:โ‹… 149:s 147:โ‹… 145:m 143:โ‹… 115:โ‹… 113:K 111:โ‹… 107:โ‹… 105:m 79:โ‹… 77:K 75:โ‹… 73:J 36:R 20:)

Index

Molar gas constant
SI units
J
K
mol
m
Pa
K
mol
kg
m
s
K
mol
L
Pa
K
mol
L
kPa
K
mol
L
bar
K
mol
erg
K
mol
atm

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