Excess Molar Volumes, Excess Viscosities and Ultrasonic Speeds of Sound of Binary Mixtures of 1,2-Dimethoxyethane with Some Aromatic Liquids at 298.15 K |
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Authors: | Bipul Kumar Sarkar Ankan Choudhury Biswajit Sinha |
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Institution: | (1) Department of Chemistry, University of North Bengal, Darjeeling, 734 013, India; |
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Abstract: | Densities, viscosities and ultrasonic speeds of sound for binary mixtures of 1,2-dimethoxyethane (DME) with benzene, toluene,
chlorobenzene, benzyl chloride, benzaldehyde, nitrobenzene, and aniline are reported over the entire composition range at
ambient pressure and temperature (i.e., T=298.15 K and p=1.01×105 Pa). These experimental data were utilized to derive the excess molar volumes (VmEV_{\mathrm{m}}^{\mathrm{E}}), excess viscosities (η
E), and various acoustic parameters including the deviation in isentropic compressibility (Δκ
S
), internal pressure (π
I), and excess enthalpy (H
E). From the excess molar volumes (VmEV_{\mathrm{m}}^{\mathrm{E}}), the excess partial molar volumes (`(V)]m,1E\overline{V}_{\mathrm{m},1}^{\mathrm{E}} and `(V)]m,2E\overline{V}_{\mathrm{m},2}^{\mathrm{E}}) and excess partial molar volumes at infinite dilution (`(V)]m,10,E\overline{V}_{\mathrm{m},1}^{0,\mathrm{E}} and `(V)]m,20,E\overline{V}_{\mathrm{m},2}^{0,\mathrm{E}}) were derived and discussed for each liquid component in the mixtures. The excess/deviation properties were found to be either
negative or positive, depending on the molecular interactions and the nature of the liquid mixtures. |
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Keywords: | |
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