Isentropic Compressibilities of Binary Mixtures of Methylcyclohexane with Substituted Benzenes and Cyclohexanone

Abstract

Ultrasonic sound velocities for four binary liquid systems of methylcyclohexane with substituted benzenes and cyclohexanone have been determined at 303.15 K. The substituted benzenes include chlorobenzene, nitrobenzene and benzonitrile. Further, isentropic compressibilities (K_s) and deviation in isentropic compressibilities (ΔK_s) have been computed from the sound velocity and density data derived from excess volumes. The results show that ΔK_s are negative over the entire range of composition for all the binary systems studied. The observed values of ΔK_s have been discussed in terms of existence of specific interactions between the components of various mixtures.