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|Title:||Thermodynamic properties of some benzene-pyridine systems.|
|Authors:||Garrett, P. R.|
|Presented at:||University of Leicester|
|Abstract:||Excess enthalpies of benzene with pyridine and some of the methyl-pyridines have been measured ca1orimetrica1ly as a function of both composition and temperature. The extreme sensitivity of these measurements to traces of moisture in either component of the mixture has been noted and investigated. Excess volumes of benzene with pyridine and some of the methy1-pyridines have also been measured (dilatometrica1ly) as a function of composition and temperature. In addition, the excess volumes of the corresponding toluene systems have been measured at one temperature for equimolar mixtures. The vapour - 1iquid equilibrium of the benzene + pyridine system has been investigated at one temperature using a static method. A standard non-linear least- squares technique has been used to calculate the excess Gibbs free energy. The thermodynamic excess functions for these systems have been interpreted in terms of specific interactions between the unlike components. An investigation of the effect of the pyridines on the absorption intensity of one of the benzene forbidden vibrational fundamentals has been attempted. A plausible method, which may have general application, for determining the intensities of partially overlapped vibrational absorption bands has been devised.|
|Rights:||Copyright © the author. All rights reserved.|
|Appears in Collections:||Theses, Dept. of Chemistry|
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