The chemical potential of non-spherical solute in the infinitely diluted mixture

Abstract

Possibility of accurate evaluation of the chemical potential of non-spherical solute in infinitely diluted solution by the perturbation theory of Kihara molecules is examined by comparing theoretical results with Monte Carlo simulation data. Two types of perturbation theory are tested and the contribution of the macroscopic compressibility approximation of the second-order perturbation term is discussed. The dependence of the chemical potential on non-sphericity of the solute is described well by the perturbation theory; the macroscopic compressibility approximation is found to be insufficient.