Department of Physics, Centurion University of Technology and Management, Odisha, India
The acoustical investigation of molecular interaction has been performed from the measurement parameters of ultrasonic velocity (U), density (ρ) and viscosity (η) of aqueous dextran solution at different temperatures. The thermodynamic and other allied parameters like internal pressure (πi), free volume (π), absorption coefficient or attenuation coefficient (α), Rao’s constant (Ro) and Wada’s constant (W) have been computed. To understand the structural reorganization of the solute (dextran) and solvent (distilled water) in aqueous solution, concentration and temperature changes of these parameters have been investigated. Differences in ultrasonic velocity and other factors are crucial to comprehending the solute-solvent intra and intermolecular interactions between the constituent molecules.
Key words: Dextran, acoustical parameters, molecular interactions, ultrasonic velocity