Thermodynamic and topological investigations of ternary mixtures with o-toluidine, tetrahydropyran, and picolines: Excess molar volume and excess isentropic compressibility

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• 作者：Neeti Hooda^a ; S.K. Jangra^a ; Dimple Sharma^b ; V.K. Sharma^a ; ^{v_sharmachem58@rediffmail.com}
• 关键词：Excess molar volume ; ; Excess isentropic compressibility ; ; Connectivity parameter of third degree of a molecule ; 3¦Î ; Interaction parameter ; ¦Ö
• 刊名：Journal of Chemical Thermodynamics
• 出版年：2012
• 出版时间：April 2012
• 年：2012
• 卷：47
• 期：Complete
• 页码：109-119
• 全文大小：237 K

文摘

The density, ¦Ñ_ijk and speed of sound, u_ijk, ternary {o-toluidine (i) + tetrahydropyran (j) + ¦Á-, ¦Â-, or ¦Ã-picoline (k)} mixtures have been measured over the entire composition range at T = (298.15, 303.15, and 308.15) K. The excess molar volume, and excess isentropic compressibility, values of the mixtures have been predicted by using the experimental results. The observed thermodynamic properties have been fitted to Redlich-Kister equation to determine ternary adjustable parameters and standard deviations. The and values have also been analyzed in terms of (1) Graph theory and (2) Prigogine-Flory-Patterson theory (PFP). It has been observed that and data determined by Graph theory compare well with experimental values.