Generalization of Guggenheim's combinatorial activity coefficient equation

Gerard J.P. Krooshof, Remco Tuinier, Gijsbertus de With

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
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We revisit Guggenheim's theory to demonstrate that the change in Gibbs energy of athermally mixing molecules can be generalized into a model that requires only the mole fraction, volume and contact area of the various molecules. Subsequently, we obtain a general formula for the combinatorial activity coefficient for mixtures of molecules differing in size and shape.

Original languageEnglish
Pages (from-to)467-471
Number of pages5
JournalJournal of Molecular Liquids
Publication statusPublished - 15 Sept 2018


  • Combinatorial
  • Entropy of mixing
  • Lattice theory


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