Ultrasonic Velocity and Absorption in Oxygen

The velocity and absorption in oxygen at room temperature were measured at five ultrasonic frequencies located in the two octaves, 316 to 1264 kc/sec. The observed velocities reduced to 0°C do not differ more than 0.2% from Dulong's observed value of $V_0$ for audible sound (317.2 m/sec). The theoretical value ($V_0={\left(\frac{\gamma p}{d}\right)}^{\frac{1}{2}}$) is 314.76 m/sec. The observed absorption values vary with frequency as expected but the deviations from the theoretical values are greater than the velocity deviations.