Original Articles: 2014 Vol: 6 Issue: 1
Ultrasonic investigation of molecular interaction in aqueous glycerol and aqueous ethylene glycol solution
Abstract
The experimental measurements of density (ρ), viscosity (η) and ultrasonic velocity (u) of aqueous glycerol and aqueous ethylene glycol solutions were carried out as functions of concentration at 308.15K. The data of ρ, η and u have been used to evaluate the adiabatic compressibility(β ad ), intermolecular free length (Lf), acoustic impedance (Z), relaxation time (τ), rao’s constant (RM), wada’s constant (W), free volume (Vf), absorption coefficient (α/f2), gibb’s free energy (ΔG), relative association (RA) and available volume (Va) to elucidate the molecular association in the mixture. The variation of these parameters with concentration of solute indicates the nature of interaction present in the binary mixture.