Temperature Dependence of Acoustic Parameters in Some Liquid Mixtures

The variation of Ultrasonic Velocities and densities of certain ternary mixture of Ethanol+1-Propanol+Benzene of fixed equal volumes were measured at various temperatures namely 300K, 305K, 310K, 315K, 320K, and 325K . The measured data is used to evaluate the various acoustic parameters like adiabatic compressibility, free length, free volume, and internal pressure. It was observed that adiabatic compressibility (β), free length (Lf), and free volume (Vf), increased with increase in temperature, whereas internal pressure (Pi) decreased with increase in temperature. The results were discussed in the light of intermolecular interactions.

Temperature, Dependence, Acoustic, Parameters

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