DENSITY OF IDEAL GASES


Density of ideal gases at at 25 °C and under 100 kPa pressure are given in the following chart.


Density Values for Various Ideal Gases at 25 °C, 100 kPa **
Gas Chemical
Formula
Density (ρ)
kg / m3
Steam H2O 0.0231
Acetylene C2H2 1.05
Air -- 1.169
Ammonia NH3 0.694
Argon Ar 1.613
Butane C4H10 2.407
Carbon monoxide CO 1.13
Carbon dioxide CO2 1.775
Ethane C2H6 1.222
Ethanol C2H5OH 1.883
Ethylene C2H4 1.138
Helium He 0.1615
Hydrogen H2 0.0813
Methane CH4 0.648
Methanol CH3OH 1.31
Neon Ne 0.814
Nitric oxide NO 1.21
Nitrogen N2 1.13
Nitrous oxide N2O 1.775
n-octane C8H18 0.092
Oxygen O2 1.292
Propane C3H8 1.808
R-12 CCL2F2 4.98
R-22 CHCLF2 3.54
R-134a CF3CH2F 4.20
Sulfur dioxide SO2 2.618
Sulfur trioxide SO3 3.272

Note: ** Or saturation pressure if it is less than 100 kPa.


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