One advantage of this simple model is that in the rare gas limit, \(Nb << V\), it reduces back to the microscopically-justified Equation (\ref{1}). (To verify this, it is sufficient to Taylor-expand t...One advantage of this simple model is that in the rare gas limit, \(Nb << V\), it reduces back to the microscopically-justified Equation (\ref{1}). (To verify this, it is sufficient to Taylor-expand the right-hand side of Equation (\ref{2}) in small \(Nb/V << 1\), and retain only two leading terms.) Let us explore the basic properties of this model.
