Difference between revisions of "MSE Density Parameter Update"

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Standard state chemical potentials in the two normalizations are related by
 
Standard state chemical potentials in the two normalizations are related by
 
[[File:T9.jpg]]  (or [[File:T10.jpg]])
 
[[File:T9.jpg]]  (or [[File:T10.jpg]])
which is derived from equality of chemical potentials in two normalizations, and using [[File:T11.jpg]]
+
which is derived from equality of chemical potentials in two normalizations, and using [[File:T11.jpg]]1 in the infinite dilution limit. Derivatives of ’s with respect to pressure give volumes, i.e.

Revision as of 06:55, 11 July 2016

In UNIQUAC term, the excess molar volume,Density Term 1.jpg , is assumed to be analogous to that of the excess Gibbs energy, i.e.

Density Term 2.jpg (Combinatorial term omitted)

where Term Term.jpg is a different interaction parameter from that of Term 4.1.jpg in the Term 5.jpg model. The symmetrically normalized T7.jpg(subscript UNIQ is omitted in the following text) needs to be converted to the unsymmetrically normalized value (T8.jpg) for density calculations in MSE. Conversion fromT7.jpgto T8.jpg: Standard state chemical potentials in the two normalizations are related by T9.jpg (or T10.jpg) which is derived from equality of chemical potentials in two normalizations, and using T11.jpg1 in the infinite dilution limit. Derivatives of ’s with respect to pressure give volumes, i.e.