LIQUID SOUND SPEEDS
Liquid Sound Speeds
Note: All the following sound speeds are calculated at 25°C. The speed of sound in liquids at temperatures other than 25°C are calculated as follows.
Example:
Substance | Form Index | Specific | Sound | ∆ v/ºC - |
|
| Gravity | Speed | m/s/ºC |
Glycol | C2H6O2 | 1.113 | 1658 | 2.1 |
Water, distilled (49,50) | H2O | 0.996 | 1498 |
For every 1°C higher than 25°C take off the value in the Δv/°C- m/s/°C column. Glycol at 50°C = 1658 - (2.1 x 25) = 1605.5
For every 1°C less than 25°C add on the value in the Δv/°C- m/s/°C column. Glycol at 5°C = 1658 + (2.1 x 20) = 1700
If the value has a minus sign in front of it then do the opposite of above. Distilled Water at 50°C = 1498 -
Distilled Water at 10°C = 1498 +
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