کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5413756 | 1506637 | 2006 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Studies of dynamic viscosity and Gibbs energy of activation of binary mixtures of methylcyclohexane with n-alkanes (C5-C10) at various temperatures Studies of dynamic viscosity and Gibbs energy of activation of binary mixtures of methylcyclohexane with n-alkanes (C5-C10) at various temperatures](/preview/png/5413756.png)
Dynamic viscosities, η, for binary mixtures of methylcyclohexane with some n-alkanes, namely, n-pentane, n-hexane, n-heptane, n-octane, n-nonane, and n-decane have been measured over the complete composition range at the temperatures 293.15 K, 298.15 K and 303.15 K and normal atmospheric pressure. Viscosity deviations Îlnη, and excess Gibbs energy of activation ÎG*E, were calculated therefrom and were correlated by a Redlich-Kister type function in terms of mole fractions. For mixtures of methylcyclohexane with the studied n-alkanes Îlnη is negative at all three temperatures. The ÎG*E values show positive values for the binary mixtures with n-decane, whereas negative values were observed for all remaining binary mixtures. An inversion of sign was observed for the mixtures with n-nonane at the rich mole fraction of methylcyclohexane. The Grunberg and Nissan and the McAllister three-body interaction models have also been used to correlate the kinematic viscosities of binary liquid mixtures with mole fractions.
Journal: Journal of Molecular Liquids - Volume 126, Issues 1â3, 15 May 2006, Pages 117-123