Theoretical evaluation of sound velocities in binary liquid mixtures containing triethyl amine

The sound velocity in binary mixtures of organic liquids containing triethylamine, a weakly polar molecule as the common component, has been evaluated theoretically, based on the Free Length Theory (F.L.T.) of Jacobson and Collision Factor Theory (C.F.T.) of Schaaffs. The results are presented along with the experimental values. The two theories, applied to mixtures of triethylamine with Benzene, Cyclohexane, Dioxan, O-xylene, Toluene, Pyridine and Aniline, are compared. The theoretical values appear to be in reasonable agreement with experimental values.