Abstract
A method of obtaining the equation of state of a classical assembly through the solid, liquid, and gas phases based on the order-disorder concept is explained. At first, the method is illustrated on an imaginary two-dimensional model. Next, the general procedure to increase the number of interstitial sublattices to infinity is explained for a one-, two-, and three-dimensional lattice. In the one-dimensional case, the present method proves to be identical with Gürsey's rigorous solution. An approximate treatment for the solid state is added.

This publication has 17 references indexed in Scilit: