THEORETICAL CALCULATION OF SOUND VELOCITIES IN BINARY LIQUID MIXTURES OF WEAK INTERACTION

In this paper the expression of the excess molar isentropic compressibility of liquid mixture andthe formula for sound velocity in a mixture of weak interaction are suggested.The sound velocities inthirty six binary liquid mixtures of weak interaction are calculated.The result shows that the agree-ment between calculated and experimental values of sound velocity is quite satisfactory.The pheno-menon for minimum sound velocity in binary liquid mixtures is explained with the help of the formulafor sound velocity.