Extension of an improved one-fluid conformal solution theory to real fluid mixtures with large size differences

摘要: Conformal solution theories have been shown to be inadequate as the size ratio of molecules in a mixture increases. We present an improved van der Waals-1 fluid conformal theory which incorporates correction term developed using statistical mechanical perturbation theory. The addresses effect different on Helmholtz free energy mixture. Results new model are compared with other for Lennard-Jones systems. also show how extend perform computations real mixtures. selected hydrocarbon mixtures given.