Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2015 Vol: 7 Issue: 6

Theoretical evaluation and comparative study of Ultrasonic velocities in binary liquid mixtures of Ethyl benzoate with some cresols at different temperatures


Theoretical velocities of binary liquid mixtures of Ethyl benzoate (EB) with o-cresol (OC), m-cresol (MC) and pcresol (PC), at T = (303.15, 308.15, 313.15, 318.15) K have been evaluated by theoretical models of the ultrasonic velocity determination are Nomoto (NOM), Impedance (IMP), Van Dael and Vangeel (VDV), Junjie’s (JUN) and Rao’s specific velocity (RAO) relations. Ultrasonic velocities and densities of these mixtures have also been measured experimentally as a function of composition of EB and temperature. A good agreement is found between experimental and theoretical values. U2 exp/U2 imx has also been evaluated for non-ideality in the mixtures. Chi-square test for the goodness of the fit is applied to investigate the relative applicability of these theories to the present systems. The results are discussed in terms of intermolecular interactions between the component molecules in these binary liquid mixtures.