Author
E. A. Turek
Bio: E. A. Turek is an academic researcher from Purdue University. The author has contributed to research in topics: Partition function (statistical mechanics) & Hard spheres. The author has an hindex of 1, co-authored 1 publications receiving 154 citations.
Papers
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TL;DR: In this article, a group contribution molecular model is developed for the thermodynamic properties of polar and nonpolar liquids and their solutions, including energy of vaporization, ρVT relations, excess properties, and activity coefficients.
Abstract: A group contribution molecular model is developed for the thermodynamic properties of polar and nonpolar liquids and their solutions, including energy of vaporization, ρVT relations, excess properties, and activity coefficients. The model is based on the cell theory in which the repulsive forces of molecules are expressed with a modified cell partition function derived from the Carnahan-Starling equation of state for hard spheres. The attractive forces are made up of group pair interaction contributions. Group and interaction properties have been determined for methyl, methylene, hydroxyl, and carbonyl. Extensive comparisons are made of predictions of the model with data for pure liquids and their solutions.
154 citations
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TL;DR: In this article, explicit expressions for local surfaces and local compositions in mixtures obtained from the quasi-chemical approach of Guggenheim are presented and their relations with empirical expressions discussed.
98 citations
TL;DR: In this article, Lagourette et al. measured the densities of the compressed liquid phase of octane, dichloromethane, and carbonate with a vibrating tube densimeter with an uncertainty of 3×10−5 ǫ cm−3.
92 citations
TL;DR: In this paper, the authors compared the obtained properties with those reported by other authors when available in the literature, and have analyzed in terms of the molecular interactions present in this kind of mixtures.
84 citations
TL;DR: In this paper, the densities and kinematic viscosities of the binary systems methyl butanoate+n-heptane, methylbutanoate +n-octane and n-heptonane+n -octane have been determined at 283.15, 293.15 and 313.15 k and atmospheric pressure for the whole composition range.
73 citations
TL;DR: In this article, the basic constraint for any valid expression for local composition, derived by McDermott and Ashton, is shown to be equivalent to the conservation equation used in Flemr's analysis.
Abstract: The basic constraint for any valid expression for local composition, derived by McDermott and Ashton, is shown to be equivalent to the conservation equation used in Flemr's analysis. A similar constraint for local surface fractions is derived. The applicability of quasi-chemical expressions for local composition or local surface area fractions is extended to different existing (random) models of solutions. Chao's and Kehiaian's treatments appear as special cases. The statistical thermodynamic derivation of UNIQUAC is discussed in the framework of the generalized treatment. A method for solving the quasi-chemical equations for quaternary systems is described.
On montre que la contrainte fondamentale etabilie par McDermott et Ashton, relativement a n'importe quelle expression valable de la composition locale, est equivalente a l'equation de conservation employee dans l'analyse de Flemr; on etablit une contrainte semblable pour les fractions locales de surface. On a etendu a differents modeles (aleatoires) de solutions existants, l'applicabilite d'expressions quasi-chimiques pour les compositions locales ou les fractions locales de surface. Les traitements de Chao et de Kehiaian apparaissent comme des cas particuliers. On discute la derivation par thermodynamique statistique d'UNIQUAC dans le cadre du traitement generalise. On decrit une methode pour resoudre les equations quasi-chimiques relatives aux systemes quaternaires.
72 citations