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For a rigid diatomic molecule, univerisa...

For a rigid diatomic molecule, univerisal gas constant `R = mc_(p)`, where `'C_(p)'` is the molar specific heat at constant pressure and 'n' is a number. Hence n is equal to

A

0.2257

B

0.4

C

0.2857

D

0.3557

Text Solution

Verified by Experts

The correct Answer is:
C
For rigid diatomic molecule.
`(C_(P))/(C_(V))=7/5`
`therefore C_(V)=5/7C_(P)`
Also, `C_P-C_V=R`
`C_P=5/7C_P=R`
`2/7 C_P=R`
`therefore n=2/7 =0.2857`.
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