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N moles of an ideal diatomic gas are in ...

N moles of an ideal diatomic gas are in a cylinder at temperature T. suppose on supplying heat to the gas, its temperature remain constant but n moles get dissociated into atoms. Heat supplied to the gas is

A

`0`

B

`5/2 "nRT"`

C

`3/2 "nRT"`

D

`1/2 "nRT"`

Text Solution

Verified by Experts

The correct Answer is:
D
`u_i=N(5)/(2)RT" "u_f=2n(3)/(2)RT(N-n)(5)/(2)RT`
`(1)/(2)nRT+(5)/(2)nRT" "triangleu = Q=(1)/(2)nRT`.
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