Study of Thermo Physical Properties of Binary Liquid Mixtures

Density and ultrasonic study for the binary mixtures of acetone and nitrobenzene over the entire concentration range were measured at temperatures 313 K. The experimental data was then used to calculate the compressibility and acoustic impedance, molecular free length, inverse relaxation time and excess parameters. The values of excess properties further fitted with Redlich–Kister polynomial equation to estimate the binary coefficients. The resulting excess functions were interpreted in terms of the interactions between the molecules in the binary mixtures. Results confirmed that dipole-dipole intermolecular interaction took place between acetone and nitrobenzene.