Viscosities of gaseous argon, oxygen and carbon monoxide between 273 and 1300 K

Abstract

The viscosities of gaseous argon, oxygen and carbon monoxide have been measured at pressures below atmospheric and at nine temperatures from 273 to 1300 K. The viscosities of argon were obtained principally to test the apparatus. A comparative capillary-flow viscometer was used, nitrogen being used as the standard, and calibration runs were done at the same temperature as that used for the gas being studied. Viscosity values for nitrogen recommended by the National Engineering Laboratory, were used to convert corrected viscosity ratios to absolute values. Some implications from the results about the forms of the intermolecular potential functions are discussed.