# Specific Gas Constant

Written by Jerry Ratzlaff on . Posted in Thermodynamics

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:

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

$$\large{ MW }$$ = molecular weight

$$\large{ R^* }$$ = universal gas constant ( 8314 J/kmol-K )

Solve for:

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