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Air Properties - Imperial Units

Thermodynamic properties of air at low pressures - imperial units

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Some thermodynamic properties of air at low pressure:

Temperature
- T -
Enthalpy
- h -
(Btu/lbm)
Relative Pressure
pr
Internal Energy
- u -
(Btu/lbm)
(R)(oF)
100 -360 23.7 0.0038 16.9
200 -260 47.7 0.0432 34.0
300 -160 71.6 0.1780 51.0
400 -60 95.5 0.486 68.1
500 40 119.5 1.059 85.2
600 140 143.5 2.00 102
700 240 167.6 3.45 120
800 340 191.8 5.53 137
900 440 216.3 8.41 155
1000 540 241.0 12.3 172
1200 740 291.3 24.0 209
1400 940 342.9 42.9 247
1600 1140 395.7 71.7 286
1800 1340 449.7 114 326
2000 1540 504.7 174 368
2500 2040 645.8 436 475
3000 2540 790.7 941 585

Volumes and Weights of Air at Different Temperatures

  • at atmospheric pressure

Air specific volume and density versus temperature diagram in imperial units

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  • en: air properties low pressures imperial units
  • es: las propiedades del aire bajas presiones unidades imperiales
  • de: Klimaeigenschaften niedrigen Drücken imperialen Einheiten
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