Gases - Speed of Sound
The speed of sound depends on the density and the bulk modulus elasticity of a gas.
Speed of sound for some gases at 0oC and atmospheric pressure:
| Gas | Speed of Sound (m/s) |
|---|---|
| Acetaldehyde | 278 |
| Acetylene | 329 |
| Air | 331 |
| Air, 20oC | 343 |
| Ammonia (30oC) | 440 |
| Argon (27oC) | 323 |
| Benzene (90oC) | 200 |
| Bromine (58oC) | 149 |
| Carbon dioxide (51oC) | 280 |
| Carbon dioxide (0oC) | 258 |
| Carbon disulfide (35oC) | 206 |
| Carbon monoxide (0oC) | 337 |
| Carbon tetrachloride (22oC) | 133 |
| Chlorine (0oC) | 205 |
| Chloroform (22oC) | 154 |
| Cyclohexan (30oC) | 181 |
| Deuterium (0oC) | 888 |
| Diethyl ether (40oC) | 187 |
| Ethane (31oC) | 316 |
| Ethylene (20oC) | 327 |
| Fluorine (102oC) | 332 |
| Trichlorofluoromethane R11 (18oC) | 143 |
| 1,1,2-trichloro-1,2,2-trifluoroethane R113 (53oC) | 124 |
| Dichlorodifluoromethane R12 (17oC) | 140 |
| Chlorodifluoromethane R22 (17oC) | 179 |
| Helium (0oC) | 973 |
| Hydrogen (27oC) | 1320 |
| Hydrogen bromide (0oC) | 200 |
| Hydrogen chloride (0oC) | 294 |
| Hydrogen iodide (0oC) | 157 |
| Hydrogen sulfide (24oC) | 309 |
| Hydrogen sulfide (0oC) | 295 |
| Krypton (30oC) | 224 |
| Methane (41oC) | 466 |
| Methane (27oC) | 450 |
| Neon (30oC) | 461 |
| Neon (0oC) | 433 |
| Nitric oxide (16oC) | 334 |
| Nitrogen (29oC) | 354.4 |
| Nitrous oxide (25oC) | 268 |
| Nitrous oxide (0oC) | 256 |
| Oxygen (27oC) | 330 |
| Oxygen (30oC) | 332.2 |
| Sulfur dioxide (0oC) | 209 |
| Sulfur hexafluoride (11oC) | 133 |
| Water vapor steam (100oC) | 477.5 |
| Water vapour steam 6 MPa (350oC) | 571 |
Note that speed is a scalar quantity. Velocity is vector quantity with direction.
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