Compressibility of Gases at High Temperatures. II. The Second Virial Coefficient of Helium in the Temperature Range 0°C to 600°C

Abstract

The second virial coefficient of helium was measured in the temperature range 0° to 600°C by an expansion procedure previously described. Within our limits of error, estimated to be approximately 0.5 percent at 0° and approximately 1 percent at 600°, the results (expressed in Amagat units of volume) are given by: 103BT=0.5485–0.1315×10−3T+(3.754/T) where T is in °K. A comparison with existing data is given.