Table of Contents
Journal of Thermodynamics
Volume 2014 (2014), Article ID 487403, 13 pages
http://dx.doi.org/10.1155/2014/487403
Research Article

Thermoacoustic, Volumetric, and Viscometric Investigations in Binary Liquid System of Cyclohexanone with Benzyl Benzoate at T = 308.15, 313.15, and 318.15 K

1Department of Physics, KRK Govt. Degree College, Addanki 523 201, India
2Department of Physics, NM Govt. Degree College, Jogipet, Medak District, Telangana 502270, India
3Department of Physics, PBN College, Guntur District, Nidubrolu 522124, India
4Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522 510, India

Received 5 September 2014; Accepted 26 November 2014; Published 29 December 2014

Academic Editor: Ahmet Z. Sahin

Copyright © 2014 Sk. Md Nayeem et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Ultrasonic velocities (), densities (), and viscosities () of binary liquid mixtures of cyclohexanone with benzyl benzoate, including pure liquids, over the entire composition range have been measured at 308.15 K, 313.15 K, and 318.15 K. Using the experimental results, parameters such as molar volume (), isentropic compressibility (), intermolecular free length (), acoustic impedance (), internal pressure (), enthalpy (), Gibbs free energy of activation of viscous flow (), and excess/deviation properties of these including partial molar volumes ( and ), excess partial molar volumes ( and ), partial molar volume of the components at infinite dilution (, ), and excess partial molar volume at infinite dilution (and ) have been computed. The observed negative values of , , , and and positive values of , , , , and for all the liquid mixtures studied clearly indicate the presence of strong dipole-dipole-type interactions, fitting of smaller molecules into bigger molecules. Further theoretical values of sound velocity and viscosity in the mixtures have been evaluated using various theories and have been compared with experimental values to verify the applicability of such theories to the systems studied.