Pressure Coefficients of Acoustic Velocity for Nine Organic Liquids

With a pressure supersonic interferometer especially devised for this purpose, nine organic liquids are examined at frequencies a little less than 200 kc and at temperatures varying from 22.7°C to 25.5°C for the various liquids. The acoustic velocity is measured at intervals from atmospheric pressure to a pressure of 300 kg/cm2. The values of the acoustic velocity (in meters per second) in the liquids at the pressures indicated are given below: LiquidC2H5BrC Cl4CHCl3C2H5OC2H5C5H12CS2C6H6C7H8C6H5NH2Atmospheric Pressure885.912.986.993.1005.1136.1290.1313.1640.300 kg/cm2 Pressure1000.1048.1097.1255.1281.1268.1416.1447.1745.This method is being used for the determination of the value of the specific heats at other than atmospheric pressure.