Study of Lennard Jones Potential Repulsive Term Exponent, Relative Association and Interaction Parameter in Binary Liquid Mixture at Different Frequencies

The study of molecular interaction in organic liquid mixture plays an important role in the development of molecular science. The present investigation deals with the study of Lennard Jones potential repulsive term exponent, relative association and interaction parameter to explain molecular interaction in binary liquid mixture of an aprotic liquid dimethyl acetamide (DMAC) with isobutyl methyl ketone at different frequencies and at constant temperature 308K.The study of DMAC is important because of its utilization in industry and pharmaceuticals. Ultrasonic velocity (U) and density (ρ) of the binary liquid mixture at different frequencies 2 MHz, 4 MHz, 6 MHz and 8MHz have been measured at temperature 308 K. Lennard Jones potential repulsive term exponent (n) relative association (RA) and interaction parameter (χ) have been calculated for the entire range of mole fraction and are interpreted to explain molecular interaction occurring in the liquid mixture.