Excess thermo-acoustical parameters in the study of molecular interactions in binary liquid mixtures containing quinoline with arenes (benzene and toluene) at temperatures TÂ =Â (303.15, 308.15, 313.15 and 318.15)K

Densities, ultrasonic velocities and viscosities have been measured in binary liquid mixtures of quinoline with arenes(benzene and toluene)at temperatures T = (303.15, 308.15, 313.15 and 318.15)K over the entire molefraction range of quinoline. From the experimentally measured data, excess thermo-acoustical parameters such as excess intermolecular freelength (LfE), excess adiabatic compressibility (βE), excess free volume (VfE), excess internal pressure (πE),excess enthalpy (HE) and excess Gibb's free energy of activation function (G*E) have been calculated. These results are fitted to the Redlich-Kister polynomial equation. These results have been explained on the basis of intermolecular interactions present between the component molecules of the liquid mixtures.