Universal Gas Constant
Universal gas constant, abbreviated as R, (Englisg units \(\frac{lbf-ft}{lbmol-R}\), Metric units \(\frac{J}{kmol-K}\)), also called gas constant, ideal gas constant, and molar gas constant. When using these values in the Ideal Gas Law (or when making any calculation) make sure the units match up. This is a physical constant that relates the properties of a gas to each other at a given temperature and pressure.
The universal gas constant is a key parameter in many areas of physics and chemistry, such as thermodynamics, kinetic theory, and gas chromatography. It is also used in the calculation of various gas properties, such as molar volume and gas density, as well as in the determination of the molecular weight of gases.
Universal Gas Constant |
|
| Values of R | Units |
| 8.314472 | J·K-1·mol-1 |
| 0.0820574587 | L·atmosphere (unit)|atm·Kelvin|K-1·Mole (unit)|mol-1 |
| 8.20574587 × 10-5 | m3·atm·K-1·mol-1 |
| 8.314472 | cm3·MPa·K-1·mol-1 |
| 8.314472 | Pa·K-1·mol-1 |
| 8.314472 | Pa·K-1·mol-1 |
| 62.36367 | L·mmHg·K-1·mol-1 |
| 62.36367 | L·Torr·K-1·mol-1 |
| 83.14472 | L·mbar·K-1·mol-1 |
| 1.987 | cal·K-1·mol-1 |
| 6.132440 | lbf·ft·K-1·g-mol-1 |
| 10.73159 | °R-1·lb-mol-1 |
| 0.7302413 | ft3·atm·°R-1·lb-mol-1 |
| 998.9701 | ft3·mmHg·K-1·lb-mol-1 |
| 8.314472 × 107 | erg·K-1·mol-1 |
| 1716 (Air only) | slug-1 |
| 286.9 (Air only) | N·m·kg-1·K-1 |
| 286.9 (Air only) | J·kg-1·K-1 |
