# Specific Gas Constant

Written by Jerry Ratzlaff on . Posted in Constants

Specific gas constant, abbreviated as R, deals with the universal gas constant which is equal to 8.314 joules per Kelvin.

## specific gas constant formula

 $$\large{ R = \frac{ R^* }{ MW } }$$

### Where:

 Units English SI $$\large{ R }$$ = specific gas constant $$\large{\frac{ft-lbf}{lbm-R}}$$ $$\large{\frac{J}{kg-K}}$$ $$\large{ MW }$$ = molecular weight $$\large{\frac{lbm}{lbmol}}$$ $$\large{\frac{kg}{kmol}}$$ $$\large{ R^* }$$ = universal gas constant $$\large{constant}$$

## Related Specific Gas Constant formula

 $$\large{ R = \frac {p }{\rho \; T} }$$ (Ideal Gas Law)

### Where:

$$\large{ R }$$ = specific gas constant

$$\large{ \rho }$$  (Greek symbol rho) = density

$$\large{ p }$$ = pressure

$$\large{ T }$$ = temperature