Radial distributions of ions for a primitive model of an electrolyte solution

Abstract

Radial distribution functions are computed for the primitive model of an electrolytic solution using the Percus-Yevick and convolution-hypernetted-chain integral equations. The results are compared with the Debye-Hückel theory. The Debye-Hückel approximation appears to be particularly bad when the density is great enough that the hard core plays a significant role in determining the radial distribution functions.