CALCULATION OF((?)v~E/(?)P)s AND ULTRASONIC VELOCITIES IN SEVEN TERNARY LIQUID MIXTURES

The formula for sound velocity in a mixture of weak interaction is used to calculate the soundvelocities in seven ternary systems.The result shows that the calculated and experimental valuesof sound velocity are in good agreement.The result given in this article also shows that the largenegative value of excess isentropic compressibility does not always indicae of the ternaryliquid mixture would have correspondingly large positive value.