Thermodynamic Properties of Associated Solutions II. Mixtures of the Type A + B + ABj

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The theory of ideal associated solutions of the type A + B + ABj is investigated. Equations describing the chemical equilibrium, number average molecular weight, activity coefficients and excess thermodynamic functions are given. For the type of association considered, GE is always negative, HE has the same sign as the standard enthalpy of the association reaction, ΔH°, and SE can have positive or negative values. The excess entropy of mixing as a function of composition has a fairly complicated shape, especially in the region where the enthalpy and the free energy term compensate for each other. The extremum properties of the thermodynamic functions are at the stoichiometric mole fraction × = 1/(1 + j), and the functions have an asymmetric parabola‐like form.

Original languageEnglish
Pages (from-to)765-780
Number of pages16
JournalIsrael Journal of Chemistry
Issue number6
StatePublished - 1 Jan 1973
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry


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