Residual properties of gases based on a complete virial equation of state

Abstract

A particular virial equation of state is proposed for calculation of residual thermodynamic properties of real gases. It uses an infinite, nontruncated series of terms, but simplified, temperature-independent values of the virial coefficients are suggested beyond the third. Range limits of applicability are investigated along with their possible extensions. Within these range limits the suggested equation defines all residual thermodynamic properties of real gases and their mixtures, including partial molar residual properties of each component in the latter. Comparison with experimental evidence and with data calculated by other methods is discussed.