THE COMPRESSIBILITY OF GASEOUS MIXTURES OF HELIUM-NITROGEN AND HELIUM-DEUTERIUM AT HIGH PRESSURES

摘要

The compressibilities of gaseous mixtures of helium-nitrogen and helium-deuterium were determined in the pressure range from 100 atm. to 1400 at 25℃. at 25 ℃. The compressi¬bility of pure helium was also determined in the same pres¬sure range at 25℃ .nThe experimental data were fitted to a four-term virial equation by the method of least squares, and the resulting virial coefficients are listed. Some of the experimental compressibility factors are then compared with the corre-sponding compressibility factors determined by an additive volume method.