Accession Number : ADD095095

Title :   The Viscosity and Thermal Conductivity Coefficients of Dilute Nitrogen and Oxygen,

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Hanley, H J M ; Ely, James F

Report Date : Jan 1973

Pagination or Media Count : 26

Abstract : The viscosity and thermal conductivity coefficients of dilute oxygen and nitrogen are discussed and tables of values are presented for temperatures between 80 and 2000 K. The oxygen viscosity tables are estimated to be accurate to two percent for temperatures up to 400 K and four percent above that temperature; the nitrogen viscosity tables are estimated to be reliable to one percent in the range 100-1000 K, increasing to two percent above 1000 K and below 100 K. The error assigned to the thermal conductivity is three percent below 400 K and five percent above 400 K for both gases. The tables were calculated from the appropriate kinetic theory equations using the m-6-8 model potential with nonspherical contributions. The approximations to the equations are discussed. It is emphasized that the available data for oxygen viscosity are generally poor and that the thermal conductivity data for both oxygen and nitrogen cannot be considered reliable at high temperatures. No oxygen data exist for temperatures above 1500 K. (Author)

Descriptors :   *NITROGEN, *OXYGEN, *VISCOSITY, *THERMAL CONDUCTIVITY, COEFFICIENTS, DILUTION, POLYATOMIC MOLECULES, KINETIC THEORY, MOLECULE MOLECULE INTERACTIONS, THERMAL DIFFUSION, TEMPERATURE, NUMERICAL ANALYSIS, TABLES(DATA)

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE