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A closed container contains 2 moles of H2. If one mole of H2 is dissociated into atomic hydrogen, then molar specific heat of the mixture at constant volume is

a
11R6
b
7R2
c
7R6
d
8R3

detailed solution

Correct option is A

(1)After dissociation, the container contains a mixture of 2 mole of mono atomic gas and 1 mole of diatomic gas∴CV=n1CV1 + n2CV2 n1+n2 =  2×  3R2 +1 ×  5R22+1=11R6.

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