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QJEEM22Phe00a: JEE Main 2022 Physics - Class 11 JEEM22Phe00a Solution: One mole of a monoatomic gas is mixed with three moles of a…

One mole of a monoatomic gas is mixed with three moles of a diatomic gas. The molecular specific heat of mixture at constant volume is α24RJ/molK; then the value of α will be _________. (Assume that the given diatomic gas has no vibrational mode).

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CV=f2R

total degree of freedoms

=1×3+3×5=18

α24=182n=182×4

⇒α2=9

α=3

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