Research Article
Shashi Kant, Vikas Bharti, Sun
Abstract
The ultrasonic velocities (U), densities (ρ) and viscosity (η) for cadmium sulphate (CdSO4) has been measured in aqueous mannitol systems at a frequency of 3 MHz and temperatures 298.15, 303.15, 308.15, and 313.15 K. Various thermodynamic and acoustic parameters such as adiabatic compressibility (β), intermolecular free length (Lf), relative association (RA), specific acoustic impedance (Z), molar compressibility (W), Rao’s molar sound function (R), relaxation time (τ), and Gibb’s free energy of activation (G*) has been calculated. The results have been interpreted in terms of ion-ion and ion-solvent interactions which determine the chemical structure of solute and solvent molecules in the system.