An ideal gas is expanded adiabatically at an initial temperature of 300 K so that its volume is doubled. The final temperature of the hydrogen gas is (γ=1.40)

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227.36 K

500.30 K

454.76 K

-47oC

answer is A.

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Detailed Solution

TVγ−1= constant ⇒T2T1=V1V2γ⇒T2=T1V1V2γ⇒T2=300120.4=227.36K

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