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How many degress of freedom have the gas...

How many degress of freedom have the gas molecules, if under standard conditions the gas density is `rho = 1.3 kg//m^3` and velocity of sound propagation o it is `v = 330m//s` ?

A

5

B

6

C

7

D

8

Text Solution

Verified by Experts

The correct Answer is:
A
We know that, `v=sqrt((gammap)/(p))`
`gamma=(v^(2)p)/(p)=((330)^(2)xx1.3)/(1.015xx10^(5))=1.4`
`rArr" "1+1/n=1.4rArrn=5`
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