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Velocity of sound in gases

  1. May 12, 2013 #1
    Why is velocity of sound in gases independent of pressure?
  2. jcsd
  3. May 12, 2013 #2
    Depends on speed of molecules.
    Speed of molecules depends on temperature.
  4. May 12, 2013 #3


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    Gold Member

    “At a constant temperature, the ideal gas pressure has no effect on the speed of sound, because pressure and density (also proportional to pressure) have equal but opposite effects on the speed of sound, and the two contributions cancel out exactly.”
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