THERMODYNAMIC PROPERTIES OF AIR FROM 300 TO 6000K AND FROM 1 TO 1000 AMAGATS
ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN
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Tables for the thermodynamic properties of equilibrium air are presented at intervals of log rho 0.2, the density rho in amagats extending from 1 to 1000 amagats and at temperature intervals of 100 deg from 300 to 6000K. In accordance with full discussion in the text of the report, the compressibility factor Z at 300 and 400K is extrapolated to 1000 amagats by linear extrapolation of log Z - 1 against log rho at constant temperature. At 5000 and 6000K the values of Z were obtained from unpublished virial corrections furnished by Joseph Hilsenrath of the National Bureau of Standards. Interpolations between these extremes of temperature are based on an empirical equation for the pressure-temperature lines at constant density, the form of which fits known data at medium densities and also predicts data at temperatures below 300K.