Studies on Thermodynamic Properties of Polyvalent Electrolytes from E. M. F. Measurements. I. The Silver‐Silver Chromate Electrode | Zendy

Pan Kuan | Zendy

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Studies on Thermodynamic Properties of Polyvalent Electrolytes from E. M. F. Measurements. I. The Silver‐Silver Chromate Electrode

Author(s) -

Pan Kuan

Publication year - 1954

Publication title -

journal of the chinese chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.329

H-Index - 45

eISSN - 2192-6549

pISSN - 0009-4536

DOI - 10.1002/jccs.195400001

Subject(s) - molality , chemistry , chromate conversion coating , potassium chromate , electrolyte , analytical chemistry (journal) , atmospheric temperature range , electrode , inorganic chemistry , thermodynamics , chromium , aqueous solution , chromatography , physics , organic chemistry

(1) The solubility product of silver chromate was determined from e.m.f. of the cell,by extrapolation of the function,to x=0 and then m=0. K s.p. in the temperature range of 20° to 40°C is expressed by(2) The molal heat of solution of silver chromate was evaluated from the temperature coefficient of 1n Ks.p. and given by(3) The standard potential of the Ag; Ag 3 CrO 4 (s), CrO 4 − electrode was evaluated from E° = π° Ag;Ag+ − k log Ks.p. It is given by(4) The molal free energy change for solution of Ag 2 CrO 4 (s) is given by(5) The molal heat, free energy and entropy change of formation of silver chromate from its elements at 25°C were evaluated.

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