Density of an Ideal Gas

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Density of an ideal gas (volumetric mass density) is greatly affected by pressure.

 

Density of an Ideal Gas formula

\(\large{ \rho = \frac {M \; p_{atm} }{R \; T_a} }\)   

Where:

 Units English Metric
\(\large{ \rho }\)   (Greek symbol rho) = density of an ideal gas \(\large{\frac{lbm}{ft^3}}\) \(\large{\frac{kg}{m^3}}\)
\(\large{ T_a }\) = absolute temperature \(\large{R}\) \(\large{K}\)
\(\large{ p_{atm} }\) = atmospheric pressure \(\large{\frac{lbf}{in^2}}\) \(\large{Pa}\)
\(\large{ M }\) = molar gas \(\large{ft^3}\) \(\large{m^3}\)
\(\large{ R }\) = molar gas constant \(\large{\frac{lbf-ft}{lbmol-R}}\) \(\large{\frac{J}{kmol-K}}\)

 

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Tags: Gas Equations Density Equations Ideal Gas Equations