Chemical elements
  Nitrogen
    Isotopes
    Energy
    Nitrogen Cycle
    Production
    Application
    Physical Properties
      Compressibility
      PV and temperature
      Specific Heats
      Viscosity
      Refractivity
      Spectra
      Solubility
      Liquid Nitrogen
      Solid Nitrogen
      Active Nitrogen
      Formation of Nitrides
      Atomic Weight
      Disintegration
    Chemical Properties
    Ammonia
    Hydroxylamine
    Hydrazine
    Azoimide
    Nitric Acid

Viscosity of Nitrogen






The viscosity, η, of nitrogen is lower than that of oxygen, and therefore lower than that of air. The variations of viscosity with temperature in the case of nitrogen and air can be calculated from the formula of Sutherland:



in which C=110 for nitrogen and 114 for air.

According to C. J. Smith, the viscosity of air as experimentally determined at 15° C. is 1.799×10-4, while the values for nitrogen are:

0° C.15° C.100° C.
η×1041.6651.7372.118


The interpolated value at 23° C. is 1.773×10-4, while the experimental value obtained by Yen is 1.7665×10-4.
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