Molecular interaction studies in ternary liquid mixture of dimethylacetamide using ultrasonic technique at 308 K

Abstract

The experimental density (ρ) and ultrasonic velocity (U) for ternary mixture containing dimethylacetamide (DMAC), acetone and diethyl ether at frequencies 2, 4, 6 and 8 MHz have been measured at temperature 308 K. These data are used to compute adiabatic compressibility (Ks), intermolecular free length (Lf), acoustic Impedance (Z), molar volume (Vm), molar sound velocity (R), molar compressibility (B), available volume (Va), Lennard-Jones potential repulsive term exponent (n), relative association (RA), interaction parameter (χ) and some excess thermo acoustic parameters for whole range of concentration of DMAC and are interpreted to elucidate molecular interaction occurring in the liquid mixture.