Authors : V. A. Giratkar, R. B. Lanjewar and S. M. Gadegone
Page Nos : 37-40
Description :
The ultrasonic velocity (u), density (ρ) and viscosity (η) of an amino acid L-Valine of various concentrations in 2% of NaBr solutions have been measured. From these experimentally measured parameters thermodynamic parameters such as adiabatic compressibility (β_a), intermolecular free length (L_f), acoustic impedance (Z) and internal pressure (π_i) were calculated. It was found that there is certain degree of variation in these parameters with change in concentration and temperature. The variations of acoustic parameters with concentration and temperature indicate the existence of intermolecular interaction in the present systems.
Keywords: L-Valine, Ultrasonic velocity, thermodynamic parameters, molecular interactions
