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The temperature of an ideal gas undergoi...

The temperature of an ideal gas undergoing adiabatic expansion varies with volume as `T prop V^(-(3)/(4))`, then the value of `(C_(P))/(C_(V))` for the gas is

A

`(3)/(5)`

B

`(5)/(3)`

C

`(7)/(3)`

D

`(7)/(4)`

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