Excess thermodynamic and acoustic properties for equimolar mixture of methyl benzoate and alkanols with benzene at 303.15 K

Abstract

The values of speed of sound (U), density (ρ) and viscosity (η) of pure liquids and the mixture of methyl benzoate + 1-propanol/1-butanol/1-pentanol with benzene were measured over the entire mole fraction range at T=303.15 K. From these values, various thermo-acoustic parameters such as excess molar volume (VE), excess isentropic compressibility (KsE), and excess free length (LfE), excess Gibbs free energy (∆G*E) and excess enthalpy (HE) are calculated. The reason for deviations in these excess parameters is explained based on the intermolecular interactions present in these liquids.