Gas-Liquid Phase Transition in Statistical Mechanics

Details Gas-Liquid Phase Transition in Statistical Mechanics Gas-Liquid Phase Transition in Statistical Mechanics

2004-04-28

arxiv.org/abs/cond-mat/0404665v2

Physics

Condensed Matter

Statistical Mechanics

17 pages, 6 figures

Scientific paper

A new theory on gas-liquid phase transition is given. The new idea is that the total intermolecular potential energy for a classical system in equilibrium is relative with the average distance of molecules. A new space homogeneity assumption is postulated, a new formulation -- the mean distance expansion, instead of Mayer's Cluster Expansion, is introduced, a new explanation on liquid-gas phase transition is given, and the physical quantities in a system of coexistent vapor and liquid -- the densities of the coexistent vapor and liquid, the vapor pressure and the latent heat, are calculated.

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