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 partition functions and intermolecular interaction potentials. The results of calculation of the equilibrium thermodynamic characteristics for the systems with spherically symmetric interaction potentials are presented. Real molecular liquids (C-2-C-3 hydrocarbons) are considered within 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 experimental data.