Study of Molecular Interactions in Liquidmixture Using Ultrasonic Technique

Abstract

The ultrasonic velocity, density and viscosity of the mixtures namely, methylmethacrylate with methanol, p-dioxane and cyclohexane at 303K have been measured. From the measured data, some of the acoustical parameters such as adiabatic compressibility (β a) , free length (L f), free volume (V f) , internal pressure (π i), relaxation time (τ) , acoustic impedance(Za) and Gibb's free energy(ΔG)values have been calculated for all the mixtures. The behavior of these parameters with composition of the mixture at the temperature 303K has been discussed in terms of molecular interaction between the components of liquids.