Perturbation theory for high pressure behavior of liquid mixtures
Abstract
Pade approximant to the Helmholtz free energy was developed for mixtures of nonspherical molecules. Comparisons of the theory with computer simulation results show the equation to be highly accurate for fluids in which strong polar, quadrupolar or anisotropic overlap forces are present. The theory is shown to work well in both the gas and liquid states. Mixture properties calculated include the excess thermodynamic functions, the vaporliquid coexistence curves (compositions and pressures), the liquidliquid coexisting curves (where present), and the vaporliquid critical loci. Comparisons of theory with experiment are reported for pure fluids, binary systems and ternary systems.
 Publication:

Ph.D. Thesis
 Pub Date:
 July 1976
 Bibcode:
 1976PhDT........52T
 Keywords:

 Binary Mixtures;
 High Pressure;
 Liquid Phases;
 Perturbation Theory;
 Ternary Systems;
 Thermodynamic Properties;
 Monte Carlo Method;
 Pade Approximation;
 Phase Diagrams;
 Fluid Mechanics and Heat Transfer