Ultrasonic Velocity and Compressibility of Heavy Water at Atmospheric Pressure within the Temperature Limits 277-313 K

摘要

The ultrasonic group velocity (f=4 MHz) in heavy water was measured within the temperature limits 277-313 K in 1 K intervals using two independent velocimeters of the sing-around type. A third order polynomial was fitted to the results. From the measured velocity and the literature values of density and heat capacity, the adiabatic and isothermal compressibilities were calculated. A fairly good agreement between the measured values and the literature data was found. Some observed minor discrepancies are discussed and explained.