Eur. Phys. J. D (2013) 67: 207
https://doi.org/10.1140/epjd/e2013-40041-6

Regular Article

Study of molecular interaction in ternary mixture of 1,2-dichlorobenzene with (benzene + p-xylene)-linear correlation factor, excess molar polarization and Gibb’s free energy of mixing

¹ Department of Physics, Synergy Institute of Engg. & Technology, Dhenkanal 759001 Odisha, India
² Principal, Khallikote Autonomous College, Berhampur 760001 Odisha, India
³ Post–Graduate Department of Physics, Ravenshaw University, Cuttack 753003 Odisha, India

^a e-mail: snehaljayashree@gmail.com

Received: 24 January 2013
Received in final form: 29 June 2013
Published online: 18 October 2013

Abstract

The relative permittivity in ternary mixture of 1,2-dichlorobenzene with (benzene + p-xylene) has been measured at frequency 455 kHz and temperature 303.16 K. The Kirkwood-Fröhlich linear correlation factor (g), excess molar polarization (ΔP), and Gibb’s free energy of mixing (ΔG) in these mixtures are calculated using the experimental values of relative permittivity on the basis of Winkelmann-Quitzsch equation. These parameters are found to be mole faction dependent indicating existence of angular correlation between the polar molecules in the non-polar solvent. The study reveals that the non-polar solvent benzene is dominant over p-xylene in the mixtures.