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Some scientific and engineering data online

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Calculation of thermodynamic state variables of nitrogen

lower limit for calculation: -200 C, 1 bar      upper limit: 1000 C, 1000 bar

Pressure:
Temperature:



Calculation of thermodynamic state variables of nitrogen in saturation state, boiling curve

Lower limit for calculation: -210 C, 0.13 bar bar      upper limit: -148 C, 33 bar.

Pressure:
OR
Temperature:

The following thermodynamic properties are calculated:
density, dynamic viscosity, kinematic viscosity, specific enthalpy, specific entropy, specific isobar heat capacity cp, specific isochor heat capacity cp, thermic conductivity, coefficient of thermal expansion, heat conductance, thermal diffusivity, Prandtl-number, coefficient of compressibility Z, speed of sound.

Calculation of Nitrogen : if you found an error, please mail to: wischnewski@mpib-berlin.mpg.de. No garanty for correctness.

Thermodynamic constants of nitrogen - N2:

molar mass
28.01348 [ kg / kmol ]
gasconstant R
296.8039 [ J / (kg K) ]
isentropic exponent
1.4
critical state variables:
pcrit
 33.958 [ bar ]
Tcrit
 126.192 or -146.958 [ K or C]
densitycrit
 313.3 [ kg / m3 ]
tripelpoint pressure pTr
 0.125 [ bar]
tripelpoint temperature
 63.151 or -209.999 [ K or C]

 

nitrogen at normconditions, tnorm= 0oC,    pnorm= 1013,25 mbar:

density
 1.2506 [ kg / m3 ]
isobar heat capacity cp
 1.041 [ kJ / (kg K) ]
isochor heat capacity cv
 0.7429 [ kJ / (kg K) ]
speed of sound
 337 [ m / s ]

Released june 2007





Wikipedia ->nitrogen