Properties of common gases (14.696 kPa, 68°F)
From CRC Handbook (1973), with permission
Common |
Chemical Formula |
Molecular weight |
Density, |
Viscosity, |
Hydrogen |
H2 |
2.02 |
0.00523 |
0.0608 |
Helium |
He |
4.00 |
0.0104 |
0.1322 |
Water vapor |
H20 |
18.02 |
0.0468 |
0.0682 |
Air (dry) |
- |
28.96 |
0.0752 |
0.1235 |
Carbon dioxide |
CO2 |
44.01 |
0.114 |
0.0997 |
Carbon monoxide |
CO |
28.01 |
0.0727 |
0.1222 |
Nitrogen |
N2 |
28.02 |
0.0727 |
0.1184 |
Oxygen |
O2 |
32.00 |
0.0831 |
0.1345 |
Methane |
CH4 |
16.04 |
0.0416 |
0.0901 |