Some Recent p, V, T Measurements

In this section we give brief notes on some recent measurements of the p, V, r relations of real gases, to illustrate the intense activity in this subject. Only work that was not included in Dymond and Smith s or Mason and Spurling s monographs is mentioned. Hence the present notes are intended to complement and supplement these two earlier reviews. 

Monatomic Gases.—Kudchadker and Eubank calibrated their Burnett apparatus by means of helium they reported values of B for helium at 100, 150, and 200 °C. Kalfoglou and Miller also studied the compressibility of helium they reported values of B for temperatures between 30 and 500 °C. 

Streett measured the density of neon at pressures up to 2000 bar from 80 to 130 K. 

Robertson et a/. measured the density of argon at temperatures between 35 and 400 °C, at pressures between 1500 and 10000 bar. Kalfoglou and Miller studied the compressibility of argon at temperatures between 30 and 500 C, at pressures between 3 and 80 bar, and derived values of B and C. 

Diatomic Gases.— Weber measured the density of oxygen at close intervals of temperature in the range 54 to 300 K, and at pressures in the range 1 to 330 bar. His derived values of B and C (85 to 300 K) seem extremely accurate. 

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