Speed of Sound in Gases

Speed of sound in some common gases

Speed of sound in some common gases at 0oC and atmospheric pressure are indicated below:

Gas Speed of Sound
(m/s) (ft/s)
Air 331 1086
Carbon Dioxide 259 850
Carbon Monoxide 336
Oxygen 316 1037
Helium 965 3166
Hydrogen 1290 4232
Water vapor 405 1328

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