Comparison of theoretical and experimental ultrasonic velocity in three-component mixtures of methyl ethyl ketone and toluene with n-alkanols and estimation of acoustic nonlinearity parameter (B/A)

Abstract

A theoretical estimation of ultrasonic velocity using Flory–Patterson theory (FPT), Jacobson’s free length theory, Schaaffs’ collision factor theory, Nomoto’s relation, and Van Dael’s ideal mixture relation (IMR) has been done in the three-component (ternary) mixtures of methyl ethyl ketone and toluene with n-alkanols. The theoretically predicted ultrasonic velocities are compared with the experimentally determined velocities in the ternary mixtures at 30 °C. It is found that the velocities evaluated using all the theories except FPT and IMR are in fairly good agreement with the experimental velocity values. Acoustic nonlinearity parameter (B/A) and a few thermodynamic parameters have been evaluated theoretically for the ternary mixtures using the Tong and Dong equation combined with Flory’s statistical theory and its extended version to ternary mixtures.