Collect. Czech. Chem. Commun. 1985, 50, 2210-2216
https://doi.org/10.1135/cccc19852210

A general form of an equation of state

Chone Naing Chena, Vojtech Frieda and Waren Hirschb

a Department of Chemistry, City University of New York, Brooklyn College, Brooklyn, New York 112 10
b Edward R. Murrow High School, Brooklyn, New York 112 30, U.S.A.

Abstract

It is shown that all the equations of state are simplified version of the general equation of state, PΩ(V - μ) = RT.Ω, the term responsible for the attractive forces, is a function of volume and temperature. μ, the term responsible for the repulsive forces, is also a function of volume and temperature. A detailed analysis of a large number of experimental P-V-T data reveals that the Ω vs P function and the μ vs P function, at a constant temperature, go through a maximum. These maxima must be predicted by all physically consistent equations of state.