Air - Specific Heat at Constant Temperature and Various Pressures

Specific Heat of air at constant temperature 20oC and pressure ranging 0.01 to 100 atm

Specific Heat of dry air at constant temperature 20oC at various pressures are indicated below:

air pressure specific heat capacity

Pressure Specific Heat Specific Heat Ratio
cp/cv
(atm) (psia) (kPa) (J/kg oC) (kcal/kg oC) (Btu/lbm oF)
0.01 0.147 1.01325 1004.5 0.2399 0.2399 1.4002
0.1 1.47 10.1325 1004.9 0.2400 0.2400 1.4003
0.4 5.88 40.53 1005.3 0.2401 0.2401 1.4008
1 14.7 101.325 1006.1 0.2403 0.2403 1.4019
7 102.9 709.28 1016.2 0.2427 0.2427 1.4131
10 147 1013.25 1021.6 0.2440 0.2440 1.4188
40 588 4053 1075.6 0.2569 0.2569 1.4763
70 1029 7092.8 1130.5 0.2700 0.2700 1.5323
100 1470 10132.5 1182.4 0.2824 0.2824 1.5828

Related Topics

  • Air Psychrometrics - The study of moist and humid air - air condition - psychrometric charts, Mollier diagrams, air temperature, absolute and relative humidity, moisture content and more

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