Solute-solute correlations in infinitely dilute supercritical mixtures

Pablo G. Debenedetti, Ariel A. Chialvo

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Asymptotic expressions for the solute-solute pair correlation integral and for the limiting slope of the composition dependence of the solute's activity coefficient are derived for the situation in which the solvent's critical point is approached while the mixture is kept at infinite dilution. Both quantities diverge to plus infinity and scale as the solvent's compressibility, with prefactors that depend on the temperature, solvent density, and the infinite dilution limit of the solute-solvent direct correlation function integral.

Original languageEnglish (US)
Pages (from-to)504-507
Number of pages4
JournalThe Journal of chemical physics
Volume97
Issue number1
DOIs
StatePublished - Jan 1 1992

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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