Theories of Ultrasonic Velocities and their Application in Binary Liquid Mixtures of N-Ethylaniline with Some Toluenes (Toluene, o-Nitrotoluene and m-Nitrotoluene)

Abstract

Ultrasonic velocities and densities of the binary liquid mixtures of N-ethyl aniline with different toluenes like toluene, o-nitrotoluene and m-nitrotoluene have been measured at temperatures 303.15 and 308.15 K over the entire composition range. Various theories of ultrasonic velocity were applied to experimental values in evaluating the velocities using Nomoto's relation (U NR ), Impedence relation (U IR ), Ideal mixing relation (U IMR ), Jungie's relation (U JR )and Rao's specific velocity relation (U R ). The molecular interaction parameter (χ) has been evaluated from the values of experimental and theoretical velocities. The variation of this interaction parameter with the composition mixture has been discussed in terms of molecular interactions.

Evaluation of Theoretical Velocities and Comparative Study of Ultrasonic Velocities in Binary Liquid Mixtures of Ethyl Lactate with Branched Alkanols at Different Temperatures

“…The present work is a continuation of our research programme on a comparison of experimental ultrasonic velocity with the theoretical models of Nomoto, impedance relation, Van Dael ideal mixing relation, Rao's specific velocity and Junjie's relation for the binary mixtures of several systems at various temperatures by our researchers. The results are interpreted in terms of intermolecular interactions between the binary component liquid mixtures [10][11][12][13][14][15][16][17][18] . In this paper, we report the experimental and theoretical ultrasonic velocities of the binary liquid mixtures of ethyl lactate with 2-propanol, 2-butanol and 2-methyl,1-propanol at 303.…”