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The ratio of the molar heat capacities o...

The ratio of the molar heat capacities of a diatomic gas at constant pressure to that at constant volume is

A

`7/5`

B

`3/2`

C

`3/5`

D

`5/2`

Text Solution

Verified by Experts

The correct Answer is:
A
For a diatomic gas,
Molar heat capacity at constantpressure, `C_(P)=7/2R`
Molar heat capacity at constant volume , `C_(V)=5/2R`
`(C_(P))/(C_(V))=(7//2R)/(5//2 R)=7//5`
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