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Dry Air - Thermodynamic and Physical Properties

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Properties like

  • specific heat
  • ratio of specific heats
  • dynamic viscosity
  • thermal conductivity - a measure of how quickly a material can absorb heat from its surroundings.
  • Prandtl number
  • density
  • kinematic viscosity
  • thermal diffusivity

of dry air at temperatures at one atmosphere from 175 K to 1900 K .

For full table with Ratio of Specific Heats, Thermal Conductivity, Prandtl Number, Kinematic Viscosity, Density and Diffusivity - rotate the screen!

Dry Air - Thermodynamic and Physical Properties
Temperature
( K )

Specific Heat Ratio of Specific Heats
- k -
( c p /c v )
Dynamic Viscosity
- μ -
(10 -5 kg/m s)
Thermal Conductivity
(10 -5 kW/m K)
Prandtl Number Kinematic Viscosity 1)
- ν -
( 10 -5 m 2 /s)
Density 1)
- ρ -
(kg/m 3 )
Thermal Diffusivity
- α -
(10 -6 m 2 /s)
- c p -
(kJ/kgK)
- c v -
(kJ/kgK)
175 1.0023 0.7152 1.401 1.182 1.593 0.744 0.586 2.017
200 1.0025 0.7154 1.401 1.329 1.809 0.736 0.753 1.765 10.23
225 1.0027 0.7156 1.401 1.467 2.020 0.728 0.935 1.569
250 1.0031 0.7160 1.401 1.599 2.227 0.720 1.132 1.412 15.72
275 1.0038 0.7167 1.401 1.725 2.428 0.713 1.343 1.284
300 1.0049 0.7178 1.400 1.846 2.624 0.707 1.568 1.177 22.18
325 1.0063 0.7192 1.400 1.962 2.816 0.701 1.807 1.086
350 1.0082 0.7211 1.398 2.075 3.003 0.697 2.056 1.009 29.50
375 1.0106 0.7235 1.397 2.181 3.186 0.692 2.317 0.9413
400 1.0135 0.7264 1.395 2.286 3.365 0.688 2.591 0.8824 37.66
450 1.0206 0.7335 1.391 2.485 3.710 0.684 3.168 0.7844
500 1.0295 0.7424 1.387 2.670 4.041 0.680 3.782 0.7060
550 1.0398 0.7527 1.381 2.849 4.357 0.680 4.439 0.6418
600 1.0511 0.7640 1.376 3.017 4.661 0.680 5.128 0.5883
650 1.0629 0.7758 1.370 3.178 4.954 0.682 5.853 0.5430
700 1.0750 0.7879 1.364 3.332 5.236 0.684 6.607 0.5043
750 1.0870 0.7999 1.359 3.482 5.509 0.687 7.399 0.4706
800 1.0987 0.8116 1.354 3.624 5.774 0.690 8.214 0.4412
850 1.1101 0.8230 1.349 3.763 6.030 0.693 9.061 0.4153
900 1.1209 0.8338 1.344 3.897 6.276 0.696 9.936 0.3922
950 1.1313 0.8442 1.340 4.026 6.520 0.699 10.83 0.3716
1000 1.1411 0.8540 1.336 4.153 6.754 0.702 11.76 0.3530
1050 1.1502 0.8631 1.333 4.276 6.985 0.704 12.72 0.3362
1100 1.1589 0.8718 1.329 4.396 7.209 0.707 13.70 0.3209
1150 1.1670 0.8799 1.326 4.511 7.427 0.709 14.70 0.3069
1200 1.1746 0.8875 1.323 4.626 7.640 0.711 15.73 0.2941
1250 1.1817 0.8946 1.321 4.736 7.849 0.713 16.77 0.2824
1300 1.1884 0.9013 1.319 4.846 8.054 0.715 17.85 0.2715
1350 1.1946 0.9075 1.316 4.952 8.253 0.717 18.94 0.2615
1400 1.2005 0.9134 1.314 5.057 8.450 0.719 20.06 0.2521
1500 1.2112 0.9241 1.311 5.264 8.831 0.722 22.36 0.2353
1600 1.2207 0.9336 1.308 5.457 9.199 0.724 24.74 0.2206
1700 1.2293 0.9422 1.305 5.646 9.554 0.726 27.20 0.2076
1800 1.2370 0.9499 1.302 5.829 9.899 0.728 29.72 0.1961
1900 1.2440 0.9569 1.300 6.008 10.233 0.730 32.34 0.1858

1) At pressure 1 atm

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