ULTRASONIC INVESTIGATION OF MOLECULAR INTERACTIONS IN BINARY LIQUID MIXTURES AT 298 K AND 2 MHZ FREQUENCY

Abstract

: Ultrasonic studies may throw more light on the molecular interaction to know the behaviour of solute and solvent molecules in liquid mixtures and solutions. Measurements of ultrasonic velocity, density and viscosity have been carried out for 1-Heptanol in Acrylonitrile at different concentrations at 298 K temperature and 2 MHz frequency, to provide information about molecular environment and extent of molecular interaction by ultrasonic technique. Ultrasonic velocity study of binary liquid mixture has gained much importance in assessing the weak and strong molecular interactions and association between the component molecules. Acoustical parameters such as adiabatic compressibility (βa), intermolecular free length (Lf), Acoustic Impedance (Z) and Relaxation time (τ) for n-Heptanol in Acrylonitrile were calculated from ultrasonic velocity and effect of concentration on molecular interaction was predicted.