2.  When an ideal gas is compressed adiabatically and reversibly, the final temperature is

(1) Higher than the initial temperature
(2) Lower than the initial temperature
(3) The same as the initial temperature
(4) Dependent on the rate of compression 


Dear Student,

We know that, TVγ-1 = contantor, T1V1γ-1=T2V2γ-1or, T2= T1 (V1V2)γ-1In compression, V1>V2Therefore, T2 > T1Hence, correct answer is (1)

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use P(Vgamma) = constant and PV=nRT to derive an expression between T,V,gamma . The answer will be A
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