# Steam Density

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Steam has a higher density than water vapor, the higher the pressure the higher the steam density.

## Steam Density FORMULA

 $$\large{ \rho_s = \frac{P \; MW}{R^* \; T} }$$

### Where:

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

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

$$\large{ P }$$ = pressure

$$\large{ T }$$ = temperature

$$\large{ R^* }$$ = universal gas constant