Thermo-Acoustical and Molecular Interaction Studies in Binary Liquid Mixtures at Different Temperatures

International Journal of Applied Physics

© 2018 by SSRG - IJAP Journal

Volume 5 Issue 3

Year of Publication : 2018

Authors : Nagarjuna.A, Babu.Shaik, GovindaRao.K, Kalimulla.T, Gangadhar Rao G.V

10.14445/23500301/IJAP-V5I3P103

How to Cite?

Nagarjuna.A, Babu.Shaik, GovindaRao.K, Kalimulla.T, Gangadhar Rao G.V, "Thermo-Acoustical and Molecular Interaction Studies in Binary Liquid Mixtures at Different Temperatures," SSRG International Journal of Applied Physics, vol. 5,  no. 3, pp. 11-21, 2018. Crossref, https://doi.org/10.14445/23500301/IJAP-V5I3P103

Abstract:

Densities, viscosities and speeds of sound of the binary mixture of Benzyl benzoate with different mole fractions of N,N Di methyl formamide (NN DMF) have been measured using the standard techniques at 303.15, 308.15 and 313.15K. From the experimental data, various acoustical parameters such as isentropic compressibility (Ks), intermolecular free length (Lf), molar volume (Vm), Gibbs free energy (ΔG), Enthalpy (HE)and their excess values like V mE , KsE, LfE , ΔGE and HE are evaluated . The computed values have been fitted to the Redlich–Kister type polynomial equation using least squares method to estimate the binary coefficients and standard deviations. Further, various empirical relations were used to correlate viscosity and speed of sound theories of these binary mixtures at different temperatures, over whole mole fraction range. Deviations of excess properties have been explained in terms of interactions between unlike components of the present binary system.

Keywords:

 Acoustical parameters, Molecular interactions, Redlich–Kister type polynomial equation, viscosity and speed of sound theories, Mole fraction

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