Theoretical Evaluation of Sound Velocity, Viscosity and Density of Binary Liquid System

Author(s): N. Siddharthan* and S. Jayakumar

Ultrasonic velocity, density and viscosity have been measured using the standard techniques in the binary mixtures of acetone with carbon tetrachloride. The study of ultrasonic waves through the solution is used for knowing the nature and strength of the intermolecular forces and their interactions in pure liquids and their mixtures. The theoretical ultrasonic velocity in binary mixtures computed using theoretical models of liquid mixtures such as Nomoto’s relation, Ideal mixture relation, Impedance relation, Rao’s specific velocity relation, Junjie’s relation and Danusso model. The validity of the theories was interpreted in terms of average percentage error (APE). Further, various theoretical models estimate the liquid viscosity and density of the binary mixtures at atmospheric temperature and pressure, over the whole concentration range. The theoretical models studied in this work predict with accuracy of the liquid density of pure compounds. The relative merits of these relations were discussed.

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