If C=332 m s^(-1), say the velocity of s...

If `C=332 m s^(-1)`, say the velocity of sound in dry air at STP, find the velocity of sound in loist air at STP. Molecular weight of air =28.8, that of water vapour `=18, gamma` of dry air `=1.4` and `gamma` of water vapour `=1.33`. The standard pressure is `750` mm of mercury and standard temperature is `0^(@)C`. the vapour pressure at `0^(@)C` is `4.8` mm of mercury.

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The correct Answer is:

`331.7 m s^(-1)`

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