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Speed of Sound in Gases

Acoustic velosity in different gases

The speed of sound (acoustic velosity) depends on the density and the bulk modulus elasticity of a gas.

Here is a list of speeds of sound for some gases at atmospheric pressure.

You can also calculate the speed of sound here based on the gas properties of your application.

Gas ft/s m/s
Acetaldehyde 912 ft/s 278 m/s
Acetylene 1079 ft/s 329 m/s
Air 1086 ft/s 331 m/s
Air, 20ºC 1125 ft/s 343 m/s
Ammonia (30ºC) 1443 ft/s 440 m/s
Argon (27ºC) 1059 ft/s 323 m/s
Benzene (90ºC) 656 ft/s 200 m/s
Bromine (58ºC) 489 ft/s 149 m/s
Carbon dioxide (0ºC) 846 ft/s 258 m/s
Carbon dioxide (51ºC) 918 ft/s 280 m/s
Carbon disulfide (35ºC) 676 ft/s 206 m/s
Carbon monoxide (0ºC) 1105 ft/s 337 m/s
Carbon tetrachloride (22ºC) 436 ft/s 133 m/s
Chlorine (0ºC) 672 ft/s 205 m/s
Chlorodifluoromethane R22 (17ºC) 587 ft/s 179 m/s
Chloroform (22ºC) 505 ft/s 154 m/s
Cyclohexan (30ºC) 594 ft/s 181 m/s
Deuterium (0ºC) 2913 ft/s 888 m/s
Dichlorodifluoromethane R12 (17ºC) 459 ft/s 140 m/s
Diethyl ether (40ºC) 613 ft/s 187 m/s
Ethane (31ºC) 1036 ft/s 316 m/s
Ethylene (20ºC) 1073 ft/s 327 m/s
Fluorine (102ºC) 1089 ft/s 332 m/s
Helium (0ºC) 3191 ft/s 973 m/s
Hydrogen (27ºC) 4330 ft/s 1320 m/s
Hydrogen bromide (0ºC) 656 ft/s 200 m/s
Hydrogen chloride (0ºC) 964 ft/s 294 m/s
Hydrogen iodide (0ºC) 515 ft/s 157 m/s
Hydrogen sulfide (0ºC) 968 ft/s 295 m/s
Hydrogen sulfide (24ºC) 1014 ft/s 309 m/s
Krypton (30ºC) 735 ft/s 224 m/s
Methane (27ºC) 1476 ft/s 450 m/s
Methane (41ºC) 1528 ft/s 466 m/s
Neon (0ºC) 1420 ft/s 433 m/s
Neon (30ºC) 1512 ft/s 461 m/s
Nitric oxide (16ºC) 1096 ft/s 334 m/s
Nitrogen (29ºC) 1162 ft/s 354.4 m/s
Nitrous oxide (0ºC) 840 ft/s 256 m/s
Nitrous oxide (25ºC) 879 ft/s 268 m/s
Oxygen (27ºC) 1082 ft/s 330 m/s
Oxygen (30ºC) 1090 ft/s 332.2 m/s
Sulfur dioxide (0ºC) 686 ft/s 209 m/s
Sulfur hexafluoride (11ºC) 436 ft/s 133 m/s
1,1,2-trichloro-1,2,2-trifluoroethane R113 (53ºC) 407 ft/s 124 m/s
Trichlorofluoromethane R11 (18ºC) 469 ft/s 143 m/s
Water vapor steam (100ºC) 1566 ft/s 477.5 m/s
Water vapour steam 6 MPa (350ºC) 1873 ft/s 571 m/s

Disclaimer: Information provided on this website is intended for educational use only.

Source and more information: The Engineering Toolbox

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