Published Paper Details:

Acoustic and thermodynamic parameters have been used to indagate the properties of liquids and liquid mixtures. Such studies have been found to provide information regarding the intermolecular interactions and the structure of liquid state. In the present research work, attempts are made to investigate the behaviour of amino acids at various concentrations and at different temperatures. The measurements of ultrasonic velocity (U), density (?) and viscosity (?) have been carried out for D-proline in sodium bromide at different temperature. To get more information about the nature and strength of molecular interactions in the liquid mixtures, related acoustical parameter such as adiabatic compressibility (?), acoustic impedance (z), free length (Lf), classical absorption (?/f2), and internal pressure (Pi) are calculated from measured experimental data. The variations of these derived acoustical parameters with different concentration of the solute at different temperatures are used to explain structural changes and molecular interactions occurring in a solutions.