Abstract

The pair correlation function and the thermodynamic functions for the Lennard-Jones potential as calculated from the Percus-Yevick equation are presented for temperatures and densities near the coexistence curve. The thermodynamic functions are compared with those calculated from the hypernetted chain equation and with argon and xenon data. Also, the variation of the Percus-Yevick theoretical results over a wide range of temperature is discussed. It is found even at high densities that the inconsistency in the thermodynamic functions becomes small at high temperatures, and agreement with experiment likewise improves.

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