Gas Properties

Gas

Specific Heat Ratio ,cp/cv

Molecular Weight, M (g/mol)

Air 1.429
Ammonia 1.3117.039
Argon 1.66739.948
Blast furnace gas 1.41
Carbon Dioxide 1.2944.01
Carbon Monoxide 1.428.01
Chloroform 1.15119.4
Ether 1.0374.12
Helium 1.6674.02
Hydrogen Chloride 1.4136.5
Krypton 1.66783.798
Neon 1.66720.179
Nitric Oxide 1.3930.0
Nitrogen 1.428.02
Nitrous Oxide 1.2844.013
Oxygen 1.432
Steam (1 psia) 1.3218.015
Steam (14.7 psia) 1.3118.015
Sulfur Dioxide 1.2764.06
Xenon 1.667131.293

These values are for reference only and cannot be guaranteed to be accurate. Information should be corroborated with other sources.