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- Title
Orientation effect on sign and magnitude of excess thermodynamic and transport properties of binary liquid mixtures at different temperatures.
- Authors
Praveen Chand, G.; Gowri Sankar, M.; Ramachandran, D.; Rambabu, C.
- Abstract
Experimental values of the density ( ρ), speed of sound ( u), and viscosity ( η) have been measured for binary mixtures of 2-chloroaniline with toluene and xylenes ( o-xylene, m-xylene, and p-xylene) at temperatures of 303.15, 308.15, 313.15, and 318.15 K over the entire mole fraction range. By using this data, the excess molar volumes ( V), deviation in isentropic compressibility (Δ κ), and viscosity deviation (Δ η) for the binary systems at the above mentioned temperatures were calculated and fitted to Redlich-Kister equation to determine the fitting parameters and the root-mean-square deviations. The excess molar volumes, deviation in isentropic compressibility, and viscosity deviation and excess Gibbs energy of activation of viscous flow have been analyzed in terms of n- π interactions, charge-transfer complexes, and dipole-induced dipole interaction between unlike molecules. The results obtained for viscosities of binary mixtures were used to test the semi-empirical relations of Grunberg-Nissan, Katti-Chaudhri, and Hind et al., equations.
- Subjects
THERMODYNAMICS; BINARY mixtures; TEMPERATURE effect; VISCOSITY; CHLOROANILINE; ISENTROPIC compression
- Publication
Journal of Thermal Analysis & Calorimetry, 2015, Vol 119, Issue 3, p2069
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-014-4285-2