The performance of cubic equations of state on the critical isotherms of pure fluids

M.A.J. Michels, H. Meijer

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The potential of cubic equations of state for describing the critical isotherm of a pure fluid has been examined. Some mathematical results are derived which show that in this respect such equations have fundamental and far-reaching limitations, separate from their obvious failure in the critical region. The implications become clear in a numerical test of various equations on experimental critical-isotherm data. The present study provides insight into the relationship between the performance of a cubic equation of state and its parametric structure.
Original languageEnglish
Pages (from-to)57-75
JournalFluid Phase Equilibria
Issue number1
Publication statusPublished - 1984
Externally publishedYes

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