Speed Sound Gases
Reference data and engineering information about speed sound gases for acoustics applications.
speedsoundgases
Overview
Engineering reference data for Speed Sound Gases in acoustics.
Key Formulas
Speed of Sound
Speed of sound in an ideal gas.
Sound Level
Decibel level.
Wavelength
Wavelength = speed / frequency.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Speed of sound | m/s | |
| Sound level | dB | |
| Wavelength | m | |
| Frequency | Hz |
Speed of Sound in Gases
47 rows
Gas | Speed of Sound(m/s) |
|---|---|
| Acetaldehyde | 278 |
| Acetylene | 329 |
| Air | 331 |
| Air (20°C) | 343 |
| Ammonia (30°C) | 440 |
| Argon (27°C) | 323 |
| Benzene (90°C) | 200 |
| Bromine (58°C) | 149 |
| Carbon dioxide (51°C) | 280 |
| Carbon dioxide (0°C) | 258 |
| Carbon disulfide (35°C) | 206 |
| Carbon monoxide (0°C) | 337 |
| Carbon tetrachloride (22°C) | 133 |
| Chlorine (0°C) | 205 |
| Chloroform (22°C) | 154 |
| Cyclohexan (30°C) | 181 |
| Deuterium (0°C) | 888 |
| Diethyl ether (40°C) | 187 |
| Ethane (31°C) | 316 |
| Ethylene (20°C) | 327 |
| Fluorine (102°C) | 332 |
| Trichlorofluoromethane R11 (18°C) | 143 |
| 1,1,2-trichloro-1,2,2-trifluoroethane R113 (53°C) | 124 |
| Dichlorodifluoromethane R12 (17°C) | 140 |
| Chlorodifluoromethane R22 (17°C) | 179 |
| Helium (0°C) | 973 |
| Hydrogen (27°C) | 1320 |
| Hydrogen bromide (0°C) | 200 |
| Hydrogen chloride (0°C) | 294 |
| Hydrogen iodide (0°C) | 157 |
| Hydrogen sulfide (24°C) | 309 |
| Hydrogen sulfide (0°C) | 295 |
| Krypton (30°C) | 224 |
| Methane (41°C) | 466 |
| Methane (27°C) | 450 |
| Neon (30°C) | 461 |
| Neon (0°C) | 433 |
| Nitric oxide (16°C) | 334 |
| Nitrogen (29°C) | 354.4 |
| Nitrous oxide (25°C) | 268 |
| Nitrous oxide (0°C) | 256 |
| Oxygen (27°C) | 330 |
| Oxygen (30°C) | 332.2 |
| Sulfur dioxide (0°C) | 209 |
| Sulfur hexafluoride (11°C) | 133 |
| Water vapor steam (100°C) | 477.5 |
| Water vapour steam 6 MPa (350°C) | 571 |
Source: engineeringtoolbox.com
Dependence on Gas Properties
The speed of sound in a gas is determined by its density and bulk modulus elasticity. A lower density or a higher bulk modulus generally leads to a higher speed of sound.
Note on Speed and Velocity
Speed is a scalar quantity representing magnitude only, while velocity is a vector quantity that includes direction. In acoustics, the term "speed of sound" is used, as sound propagation in gases is typically isotropic under uniform conditions.