Abstract
Publisher Summary Based on a rigorous solution derived from the lattice statistical–mechanical theory, a unified group contribution equation of state (GC-EOS) is formulated. This chapter discusses a unified group contribution equation of state (GC–EOS), which is applicable for the simultaneous prediction of thermodynamic properties of pure fluids and mixtures over a wide range of pressure. The GC–EOS uses a single set of group segment size and interaction energy parameter for both pure fluids and mixtures. Quantitative applicability is demonstrated for the vapor pressures of pure fluids and vapor–liquid equilibrium properties of mixtures with emphasis on the high-pressure region, including the supercritical fluid systems.
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