Application of thermodynamic perturbation theory to polar and polarizable fluids

The results of Monte Carlo computations for the Stockmayer potential are used to assess the numerical accuracy of the perturbation scheme developed by Stell, Rasaiah and Narang (see abstr. A39024 of 1972) for the calculation of thermodynamic properties of polar fluids. The Stockmayer model consists of a Lennard-Jones potential plus a dipole-dipole interaction and the perturbation theory is based on an expansion of the Helmholtz free energy of the Stockmayer system about that of the Lennard-Jones fluid in powers of mu 2, where mu is the dipole moment.