Ternary Excess Enthalpies in Simple Reciprocal Fused‐Salt Mixtures. III. Effect of Ionic Size

Autor:	J. M. Toguri, S. V. Meschel, O. J. Kleppa
Rok vydání:	1966
Předmět:	chemistry.chemical_classification SIMPLE (dark matter experiment) Ionic radius chemistry General Physics and Astronomy Salt (chemistry) Thermodynamics Physical and Theoretical Chemistry Ternary operation Mixing (physics) Order of magnitude Reciprocal Ion
Zdroj:	The Journal of Chemical Physics. 45:3075-3081
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.1728063
Popis:	Calorimetric measurements are reported on the enthalpies of mixing in the reciprocal system Ag+–Cs+–NO3−–Cl− at 350° and in the systems Li+–Cs+–Cl−–Br−, Na+–Rb+–Cl−–Br, and Na+–Cs+–Cl−–Br− at more elevated temperatures. These results, when compared with data for the binary systems involved, permit an evaluation of the ternary excess enthalpies.It is found that these excess enthalpies are all negative and of an order of magnitude consistent with the predictions of quasichemical theory. This suggests that they in the main are due to deviations from random mixing of the ions. The deviations from quasichemical theory show a nearly linear correlation with the difference in ionic size of interchangeable ions in the mixture.
Databáze:	OpenAIRE
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