Abstract

ABSTRACTExtensive Monte Carlo simulations have been performed to obtain the thermodynamic properties of binary square-well mixtures for different compositions, well depths, hard-core diameter ratios and temperatures. They are used in combination with a one-fluid theory based on perturbation theory to analyse the performance of several mixing rules proposed in the literature. A new density- and temperature-dependent mixing rule is proposed. The new mixing rule provides better agreement with simulations than those previously proposed, especially for very asymmetric mixtures.

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