THEORETICAL DESCRIPTION OF THE PHYSICOCHEMICAL PROPERTIES OF LIQUID-SYSTEMS ON THE BASIS OF INTERMOLECULAR INTERACTION POTENTIAL

Thermodynamic properties of liquids are described on the basis of part ition functions and intermolecular interaction potentials. The results of calculation of the equilibrium thermodynamic characteristics for t he systems with spherically symmetric interaction potentials are prese nted. Real molecular liquids (C-2-C-3 hydrocarbons) are considered wit hin the framework of the model of central interactions and their heat capacities, pressures, chemical potentials, and phase transitions are calculated. The results of calculations agree satisfactorily with expe rimental data.