DefinePK

Abstract

Sound velocity, density and viscosity values have been measured at 303 K in the three binary systems of benzene + methanol, ethanol, 1-propanol. From these data, acoustical parameters such as adiabatic compressibility, free length, free volume and internal pressure have been estimated using the standard relations. The results are interpreted in terms of molecular interaction between the components of the mixtures. Observed excess value in all the mixtures indicate that the molecular symmetry existing in the alcohol is highly disturbed by the nonpolar benzene molecules and induced dipole-dipole type interactions are predominantly exist in higher members.