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Vol. 29 No. 12 (2017): Vol 29 Issue 12

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Study of Intermolecular Interactions in Binary Mixtures of 2-Methylaniline with Isomeric Chlorotoluenes at Various Temperatures

https://doi.org/10.14233/ajchem.2017.20703
Muvva Raghavendra
Department of Physics, Rayalaseema University, Kurnool-518 001, India
A. Venkatesulu
Department of Physics, Government First Grade College, Hosakote-562 114, India
M. Gowrisankar
Department of Chemistry, J.K.C.C. Acharya Nagarjuna University, Guntur-522 006, India
E. Kalavathi
Department of Physics, Government First Grade College, Hosakote-562 114, India

Corresponding Author(s) : A. Venkatesulu

venkatesuluadavala@gmail.com

Asian Journal of Chemistry, Vol. 29 No. 12 (2017): Vol 29 Issue 12

Abstract

The densities (r), ultrasonic speeds (u) and viscosities (h) are reported for binary mixtures of 2-methylaniline with isomeric chlorotoluenes namely o-chlorotoluene, m-chlorotoluene and p-chlorotoluene over the entire range of mole fractions at temperatures 303.15, 308.15, 313.15 and 318.15 K and at atmospheric pressure. The excess properties such as excess molar volume, excess isentropic compressibility and deviation in viscosity are calculated from the density, speed of sound and viscosity and the Redlich-Kister equation, correlates these properties. The excess partial molar properties (`VEm,1,`VEm,2,`KEs,m,1 and`KEs,m,2) and excess partial molar properties at infinite dilution (`V°Em,1,`V°Em,2,`K°Es,m,1 and`K°Es,m,2) of components are calculated. The VE results are analyzed in the light Prigogine-Flory-Patterson theory. Analyses of each of the three contributions namely, interactional, free volume and P* to VE show that P* contribution is negative for all systems expect p-chlorotoluene, which has positive P* contribution and interactional contribution is positive for all systems. Further, the free volume effect is negative for all the mixtures. The variations of these parameters with composition and temperature are discussed in terms of intermolecular interactions prevailing in these mixtures.

Keywords

Isomeric chlorotoluene Charge-transfer complex Partial molar volume Prigogine-Flory-Patterson theory
Raghavendra, M., Venkatesulu, A., Gowrisankar, M., & Kalavathi, E. (2017). Study of Intermolecular Interactions in Binary Mixtures of 2-Methylaniline with Isomeric Chlorotoluenes at Various Temperatures. Asian Journal of Chemistry, 29(12), 2597–2604. https://doi.org/10.14233/ajchem.2017.20703
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