Molecular Interactions from the Experimental and Validation with Estimated Theoretical Sound Velocity

The ultrasonic velocity, density and viscosity measurements carried out for the binary mixtures of toluene, m-xylene with some butanols at 303 K. Various theoretical models have been applied to these binary systems; evaluate the sound velocity values and compared with the experimental values. The validity of Nomoto theory (NT), Van Deal-Vangeal (IMR) and Free length theory (FLT) is checked and a comparative study of the above models is made. The non-ideal behavior of the system is explained in terms of molecular interactions of the constituents of the mixture. The interactions further, evident with percentage deviation, molecular interaction parameter and goodness fit test.