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The molar specific heat of the process ...

The molar specific heat of the process ` V alpha T^(4)` for `CH_(4)` gas at room temperature is :-

A

`4R`

B

`7R`

C

`3R`

D

`8R`

Text Solution

Verified by Experts

The correct Answer is:
B
`V alpha T ^(4) implies V alpha (PV)^(4)`
`implies P^(4)V^(3)` = constant `implies PV^(3//4)` = constant
`therefore C = C_(V) + (R)/(1-x) = 3R + (R)/(1-3//4) = 3R + 4R = 7R`
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