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# Air Properties - SI Units

Ideal gas properties for air at low pressure:

Air Properties - SI Units
Temperature
- T -
(K)
Enthalpy
- h -
(kJ/kg)
Relative Pressure
- pr -
Internal Energy
- u -
(kJ/kg)
Specific Volume
- vr -
200 200 0.336 143 1707
250 250 0.733 178 979
300 300 1.39 214 621
350 350 2.38 250 422
400 401 3.81 286 302
450 452 5.76 323 224
500 503 8.41 359 171
550 555 11.9 397 133
600 607 16.3 435 106
650 660 21.9 473 85
700 713 28.8 512 70
750 767 37.4 552 58
800 822 47.8 592 48
900 933 75.3 675 34.3
1000 1046 114 759 25.2
1100 1161 167 845 18.9
1200 1278 238 933 14.5
1300 1396 331 1023 11.3
1400 1515 451 1114 8.9
1500 1636 602 1205 7.2
1600 1758 791 1298 5.8
1700 1880 1025 1392 4.8
1800 2003 1310 1487 3.9
1900 2127 1655 1583 3.3
2000 2252 2068 1679 2.8
2100 2377 2559 1775 2.4
2200 2503 3138 1872 2.0

## Related Topics

### • Material Properties

Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.

## Related Documents

### Air - Prandtl Number

Prandtl number for air vs. temperature and pressure.

### Air - Thermal Conductivity vs. Temperature and Pressure

Online calculator with figures and tables showing air thermal conductivity vs. temperature and pressure. SI and imperial units.

### Air - Thermal Diffusivity vs. Temperature and Pressure

Figures and tables withdry air thermal diffusivity vs. temperarure and pressure. SI and Imperial units.

### Air - Thermophysical Properties

Thermal properties of air at different temperatures - density, viscosity, critical temperature and pressure, triple point, enthalpi and entropi, thermal conductivity and diffusivity and more.

### Air Properties - Imperial Units

Thermodynamic properties of air at low pressures - imperial units.

### Prandtl Number

A dimensionless number approximating the ratio of momentum diffusivity to thermal diffusivity.

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