Thermodynamics of the cell H2/HCl/AgCl/Ag in (acetonitrile + water) solvents
1985; Elsevier BV; Volume: 17; Issue: 4 Linguagem: Inglês
10.1016/0021-9614(85)90132-6
ISSN1096-3626
AutoresPaolo Longhi, T. Mussini, Fabio E. Penotti, Sandra Rondinini,
Tópico(s)Thermodynamic properties of mixtures
ResumoAbstract The standard e.m.f's ( p o = 101325 Pa) for the cell H 2 /HCl/AgCl/Ag in (acetonitrile + water) containing mass percentages of acetonitrile from 0 to 50 have been obtained as a function of mole fraction x of acetonitrile and temperature (within the range from 288.15 to 308.15 K), using a one-stage multilinear regression method applied to the analysis of experimental e.m.f.'s. Thermodynamic functions ( ΔG m o , ΔH m o , ΔS m o , and ΔC p , m o ) for the cell reaction at T = 298.15 K have also been obtained as functions of x . A comparison is made with the corresponding quantities computed from separate analyses of e.m.f.'s for each experimentally investigated solvent composition (mass percentages of acetonitrile: 0, 5, 10, 15, 30, and 50).
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