Pair radial distribution function of simple classical liquids

The system of ordinary differential equations is derived for the self-consi stent potential and pair radial distribution function of a simple classical liquid, for which the pair potential energy of "bare" particles is the sum of Yukawa potentials accounting for the repulsion at small distances and a ttraction at large distances. The number of parameters in the interaction p otential is large enough for the interatomic interaction to be approximated in real fluids. The model suggested accounts for the vapor-liquid phase tr ansition at the condensation curve on the temperature-concentration coordin ates. (C) 2001 MAIK "Nauka/Interperiodica".