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Sound velocity is maximum in

  • Option 1)

    H2

  • Option 2)

    N2

  • Option 3)

    He

  • Option 4)

    O2

Answers (1)

best_answer

v = \sqrt{\frac{\gamma RT}{M}} \Rightarrow v \alpha \sqrt{\frac{\gamma }{M}}

Since {\frac{\gamma }{M}} is maximum for H2 so sound velocity is maximum in H2 .

 

Effect of pressure on speed of sound -

For ideal gas

\frac{P}{\rho }= \frac{RT}{M}= constant

- wherein

With change in pressure, the density also changes so pressure has no effect on speed of sound.

 

 

 

 


Option 1)

H2

This is correct.

Option 2)

N2

This is incorrect.

Option 3)

He

This is incorrect.

Option 4)

O2

This is incorrect.

Posted by

Avinash

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