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The phase speed of a sound wave in a compressible fluid if the expansions and compression are assumed to be adiabatic. This speed a is given by the formula
where cp and cv are the specific heats at constant pressure and volume, respectively; R is gas constant; and T is the Kelvin temperature. The value of this speed under standard conditions in dry air is 331 meters per second. Compare Newtonian speed of sound. |
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Download IEC standards, International Electrotechnical Commission standards.
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