Ultrasonic Study Of Certain Binary Mixtures In Terms Of The Excess Values Of Thermodynamic Parameters

The density, viscosity and ultrasonic velocity were measured in binary mixtures of Benzene and cyclohexane, pyridine and cyclohexane, toluene and cyclohexane at different temperatures 288K, 298K, 308K and 318K for a frequency of 6 MHz. The excess values of certain thermodynamic parameters had been calculated from the above experimental data, Analysis of the excess parameters indicates the difference in the molecular interaction existing in the different binary mixtures. It was observed that weak forces like dipole-induced dipole forces and cohesive force sexist between the components of the different binary mixtures.