Abstract
The quadratic concentration dependence of the logarithmic activity coefficient and relative partial molar enthalpies of concentrated strong electrolyte solutions can be explained by assuming the solution to have a pseudolattice structure and taking short-range interactions into account through a hard-core potential with an attractive 1/r6 tail. The pseudolattice model is shown to reproduce the experimental data of activity coefficients and relative partial molar enthalpies with a great degree of accuracy over a large range of concentration. The validity of the short-range potential is explicitly tested with experimental data for a number of substances.
Published Version
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