Harold W. Woolley, William S. Benedict
naca-tn-3272
Mar 1956
Tables are presented based on the Lennard-Jones 6-12 potential for nonpolar molecules to be used in the representation of second and third virial coefficients and equation-of-state corrections for enthalpy, entropy, specific heats at constant volume and at constant pressure, the ratio of specific heats, the isentropic expansion coefficient, and the velocity of sound.
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http://naca.central.cranfield.ac.uk/reports/1956/naca-tn-3272.pdf