36:
1164:
743:
736:
935:
729:
752:
931:
1139:
681:
1134:
489:. Until about 1970, the most reliable value of the Faraday constant was determined by a related method of electro-dissolving silver metal in
967:
464:
calculations. One can divide the amount of charge (the current integrated over time) by the
Faraday constant in order to find the
1208:
1081:
1203:
1188:
1020:
774:
605:
1144:
1087:
1045:
486:
213:", that is, the electric charge of one mole of elementary carriers (e.g., protons). It is named after the English
1114:
990:
960:
833:
819:
327:
The
Faraday constant can be thought of as the conversion factor between the mole (used in chemistry) and the
1060:
1193:
721:
643:. NIST Special Publication 330. Gaithersburg, Maryland: National Institute of Standards and Technology.
400:
elementary charges per coulomb, the
Faraday constant is given by the quotient of these two quantities:
1149:
1035:
176:
1198:
1167:
1104:
953:
331:(used in physics and in practical electrical measurements), and is therefore of particular use in
221:
525:, but is sometimes used in electrochemistry. One faraday of charge is the charge of one mole of
800:
595:
918:
710:
482:
224:, the Faraday constant has an exactly defined value, the product of the elementary charge (
8:
810:
669:
465:
195:
168:
1213:
1050:
914:
908:
829:
804:
652:
600:
142:
638:
1129:
784:
760:
656:
526:
518:
229:
210:
156:
1119:
1109:
1055:
843:
839:
825:
693:
644:
332:
1030:
1025:
976:
904:
899:
888:
858:
790:
780:
490:
217:
160:
40:
1124:
995:
207:
109:
35:
1182:
1065:
849:
648:
697:
1040:
1000:
894:
884:
864:
815:
770:
461:
74:
1015:
878:
869:
751:
610:
575:
203:
874:
854:
214:
684:(1976). "Status of the Faraday constant as an analytical standard".
945:
522:
328:
199:
63:
478:
481:
deposited in an electrochemical reaction, in which a measured
1010:
591:
571:
20:
517:
Related to the
Faraday constant is the "faraday", a unit of
477:
was first determined in the 1800s by weighing the amount of
16:
Physical constant: Electric charge of one mole of electrons
468:
of a substance (in moles) that has been electrolyzed.
753:
Scientists whose names are used in physical constants
1140:
Institute of
Physics Michael Faraday Medal and Prize
932:
List of scientists whose names are used as SI units
529:(or of negative one mole of electrons), that is,
1180:
636:
1135:Royal Society of London Michael Faraday Prize
961:
737:
512:
460:One common use of the Faraday constant is in
570:The faraday is not to be confused with the
968:
954:
744:
730:
521:. Its use is much less common than of the
485:was passed for a measured time, and using
34:
637:Newell, David B.; Tiesinga, Eite (2019).
356:entities per mole, and there are exactly
632:
630:
628:
626:
670:NIST Introduction to physical constants
1181:
640:The International System of Units (SI)
206:(C/mol). As such, it represents the "
949:
725:
680:
623:
496:
159:defined as the quotient of the total
1082:Royal Institution Christmas Lectures
674:
505:23.061 kcal per volt–gram-equivalent
975:
13:
502:96.485 kJ per volt–gram-equivalent
14:
1225:
775:Newtonian constant of gravitation
563:Conversely, the Faraday constant
1163:
1162:
1145:Faraday Medal (electrochemistry)
1088:The Chemical History of a Candle
712:Foundations of Physics, Volume 2
155:, sometimes stylized as ℱ) is a
714:, by R. S. Gambhir, 1993, p. 51
179:in any given sample of matter:
1021:Faraday's laws of electrolysis
704:
663:
606:Faraday's laws of electrolysis
1:
1115:Faraday Building (Manchester)
1046:Faraday's ice pail experiment
616:
487:Faraday's law of electrolysis
322:
1209:Units of amount of substance
580:1 farad = 1 coulomb / 1 volt
335:. Because there are exactly
7:
585:
567:equals 1 faraday per mole.
10:
1230:
1204:Units of electrical charge
991:Faraday's law of induction
686:Pure and Applied Chemistry
513:Faraday – a unit of charge
177:elementary charge carriers
18:
1158:
1150:Faraday Lectureship Prize
1097:
1074:
1036:Faraday-efficiency effect
983:
928:
834:Stefan–Boltzmann constant
820:Stefan–Boltzmann constant
759:
108:
85:
72:
62:
48:
43:, the constant's namesake
33:
28:
1189:Electrochemical concepts
1168:Category:Michael Faraday
1105:Michael Faraday Memorial
649:10.6028/nist.sp.330-2019
239:, in reciprocal moles):
68:coulomb per mole (C/mol)
19:Not to be confused with
698:10.1351/pac197645020125
574:, an unrelated unit of
228:, in coulombs) and the
222:2019 revision of the SI
801:Johann Josef Loschmidt
596:electrical capacitance
919:von Klitzing constant
811:Johann Jakob Balmer
453:10 C⋅mol
315:10 C⋅mol
194:it is expressed in
134:10 C⋅mol
1194:Physical constants
1051:Faraday efficiency
915:Klaus von Klitzing
909:Josephson constant
830:Boltzmann constant
805:Loschmidt constant
601:Faraday efficiency
527:elementary charges
497:Other common units
143:physical chemistry
76:SI base units
1176:
1175:
1130:IET Faraday Medal
943:
942:
785:Avogadro constant
519:electrical charge
230:Avogadro constant
211:elementary charge
157:physical constant
139:
138:
1221:
1166:
1165:
1120:Faraday (crater)
1110:Faraday Building
1056:Electrochemistry
1006:Faraday constant
970:
963:
956:
947:
946:
844:Rydberg constant
840:Johannes Rydberg
826:Ludwig Boltzmann
795:Faraday constant
746:
739:
732:
723:
722:
716:
708:
702:
701:
678:
672:
667:
661:
660:
634:
581:
559:
557:
554:
551:
548:
545:
542:
476:
455:
454:
452:
449:
446:
443:
440:
437:
431:
429:
428:
422:
419:
399:
398:
396:
395:
394:
393:
390:
384:
381:
374:
372:
371:
366:
363:
355:
353:
350:
347:
333:electrochemistry
317:
316:
314:
311:
308:
305:
302:
299:
290:
289:
287:
284:
281:
275:
273:
270:
267:
258:
193:
154:
147:Faraday constant
135:
133:
130:
127:
124:
121:
118:
104:
89:other quantities
87:Derivations from
77:
58:
38:
29:Faraday constant
26:
25:
1229:
1228:
1224:
1223:
1222:
1220:
1219:
1218:
1199:Michael Faraday
1179:
1178:
1177:
1172:
1154:
1093:
1070:
1031:Faraday rotator
1026:Faraday paradox
979:
977:Michael Faraday
974:
944:
939:
924:
905:Brian Josephson
900:Douglas Hartree
889:Hubble constant
859:Planck constant
791:Michael Faraday
781:Amedeo Avogadro
762:
755:
750:
720:
719:
709:
705:
679:
675:
668:
664:
635:
624:
619:
588:
579:
555:
552:
549:
546:
543:
540:
538:
515:
499:
491:perchloric acid
472:
466:chemical amount
450:
447:
444:
441:
438:
435:
433:
423:
420:
418:
412:
411:
409:
404:
391:
388:
386:
385:
382:
379:
378:
376:
367:
364:
361:
360:
358:
357:
351:
348:
345:
343:
341:
325:
312:
309:
306:
303:
300:
297:
295:
293:
285:
282:
279:
277:
271:
268:
265:
263:
261:
257:
243:
238:
218:Michael Faraday
180:
161:electric charge
150:
131:
128:
125:
122:
119:
116:
114:
103:
93:
90:
88:
75:
54:
51:
44:
41:Michael Faraday
24:
17:
12:
11:
5:
1227:
1217:
1216:
1211:
1206:
1201:
1196:
1191:
1174:
1173:
1171:
1170:
1159:
1156:
1155:
1153:
1152:
1147:
1142:
1137:
1132:
1127:
1125:Faraday Future
1122:
1117:
1112:
1107:
1101:
1099:
1095:
1094:
1092:
1091:
1084:
1078:
1076:
1072:
1071:
1069:
1068:
1063:
1058:
1053:
1048:
1043:
1038:
1033:
1028:
1023:
1018:
1013:
1008:
1003:
998:
996:Faraday effect
993:
987:
985:
981:
980:
973:
972:
965:
958:
950:
941:
940:
929:
926:
925:
923:
922:
912:
902:
897:
892:
882:
872:
867:
862:
852:
847:
837:
823:
813:
808:
798:
788:
778:
767:
765:
757:
756:
749:
748:
741:
734:
726:
718:
717:
703:
692:(2): 125–130.
673:
662:
621:
620:
618:
615:
614:
613:
608:
603:
598:
594:, the unit of
587:
584:
561:
560:
514:
511:
510:
509:
508:26.801 A·h/mol
506:
503:
498:
495:
458:
457:
416:
339:
324:
321:
320:
319:
291:
259:
255:
236:
137:
136:
112:
106:
105:
101:
91:
86:
83:
82:
79:
70:
69:
66:
60:
59:
52:
50:Common symbols
49:
46:
45:
39:
31:
30:
15:
9:
6:
4:
3:
2:
1226:
1215:
1212:
1210:
1207:
1205:
1202:
1200:
1197:
1195:
1192:
1190:
1187:
1186:
1184:
1169:
1161:
1160:
1157:
1151:
1148:
1146:
1143:
1141:
1138:
1136:
1133:
1131:
1128:
1126:
1123:
1121:
1118:
1116:
1113:
1111:
1108:
1106:
1103:
1102:
1100:
1096:
1090:
1089:
1085:
1083:
1080:
1079:
1077:
1073:
1067:
1066:Line of force
1064:
1062:
1059:
1057:
1054:
1052:
1049:
1047:
1044:
1042:
1039:
1037:
1034:
1032:
1029:
1027:
1024:
1022:
1019:
1017:
1014:
1012:
1009:
1007:
1004:
1002:
999:
997:
994:
992:
989:
988:
986:
982:
978:
971:
966:
964:
959:
957:
952:
951:
948:
938:
937:
933:
927:
920:
916:
913:
910:
906:
903:
901:
898:
896:
893:
890:
886:
883:
880:
876:
873:
871:
868:
866:
863:
860:
856:
853:
851:
850:J. J. Thomson
848:
845:
841:
838:
835:
831:
827:
824:
821:
817:
814:
812:
809:
806:
802:
799:
796:
792:
789:
786:
782:
779:
776:
772:
769:
768:
766:
764:
758:
754:
747:
742:
740:
735:
733:
728:
727:
724:
715:
713:
707:
699:
695:
691:
687:
683:
677:
671:
666:
658:
654:
650:
646:
642:
641:
633:
631:
629:
627:
622:
612:
609:
607:
604:
602:
599:
597:
593:
590:
589:
583:
577:
573:
568:
566:
536:
532:
531:
530:
528:
524:
520:
507:
504:
501:
500:
494:
492:
488:
484:
480:
475:
471:The value of
469:
467:
463:
427:
415:
407:
403:
402:
401:
370:
338:
334:
330:
292:
260:
254:
250:
246:
242:
241:
240:
235:
231:
227:
223:
219:
216:
212:
209:
205:
201:
197:
191:
187:
183:
178:
174:
170:
166:
162:
158:
153:
148:
144:
113:
111:
107:
100:
96:
92:
84:
80:
78:
71:
67:
65:
61:
57:
53:
47:
42:
37:
32:
27:
22:
1086:
1061:Faraday disc
1041:Faraday wave
1005:
1001:Faraday cage
936:non SI units
930:
895:Hugo Tetrode
885:Edwin Hubble
865:Wilhelm Wien
816:Josef Stefan
794:
771:Isaac Newton
711:
706:
689:
685:
676:
665:
639:
569:
564:
562:
534:
533:1 faraday =
516:
473:
470:
462:electrolysis
459:
425:
413:
405:
368:
336:
326:
252:
248:
244:
233:
225:
220:. Since the
189:
185:
181:
172:
164:
151:
146:
140:
98:
94:
64:SI unit
55:
1016:Faraday cup
879:Bohr radius
870:Otto Sackur
611:Faraday cup
576:capacitance
288:10 mol
1183:Categories
875:Niels Bohr
855:Max Planck
617:References
537:Ă— 1 mol =
323:Derivation
294: =
262: =
1214:Quotients
763:constants
761:Physical
657:242934226
558:10 C
274:10 C
215:scientist
167:) by the
1075:Lectures
586:See also
200:coulombs
149:(symbol
1098:Related
984:Physics
523:coulomb
483:current
430:
410:
397:
377:
373:
359:
329:coulomb
81:sâ‹…Aâ‹…mol
655:
479:silver
169:amount
145:, the
1011:Farad
682:IUPAC
653:S2CID
592:Farad
572:farad
539:9.648
434:9.648
387:1.602
344:6.022
296:9.648
278:6.022
264:1.602
208:molar
196:units
175:) of
115:9.648
110:Value
21:farad
934:and
204:mole
202:per
694:doi
645:doi
582:).
550:001
547:331
544:212
541:533
445:001
442:331
439:212
436:533
392:634
389:176
346:140
307:001
304:331
301:212
298:533
280:140
269:634
266:176
198:of
141:In
126:001
123:331
120:212
117:533
73:In
1185::
832:,
690:45
688:.
651:.
625:^
553:84
493:.
448:84
432:=
424:1/
408:=
380:10
375:=
354:10
349:76
342:=
310:84
283:76
276:Ă—
251:Ă—
247:=
184:=
129:84
99:eN
97:=
969:e
962:t
955:v
921:)
917:(
911:)
907:(
891:)
887:(
881:)
877:(
861:)
857:(
846:)
842:(
836:)
828:(
822:)
818:(
807:)
803:(
797:)
793:(
787:)
783:(
777:)
773:(
745:e
738:t
731:v
700:.
696::
659:.
647::
578:(
565:F
556:Ă—
535:F
474:F
456:.
451:Ă—
426:e
421:/
417:A
414:N
406:F
383:/
369:e
365:/
362:1
352:Ă—
340:A
337:N
318:.
313:Ă—
286:Ă—
272:Ă—
256:A
253:N
249:e
245:F
237:A
234:N
232:(
226:e
192:;
190:n
188:/
186:q
182:F
173:n
171:(
165:q
163:(
152:F
132:Ă—
102:A
95:F
56:F
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
.jpg)