Thermodynamics of hard dumbell mixtures

Monte Carlo simulation results are reported for a variety of hard homonuclear diatomic fluid mixtures. The total and partial pressures are compared with the predictions of various analytic mixture equations of state, and the excess properties are discussed. The thermodynamic behaviour of the dense fluid mixtures is found to be similar to that of hard convex body mixtures. An accurate mixture equation of state is recommended on the basis of the comparisons.