Question 1
In case of reversible adiabatic we have the formula as
TVγ-1 = constant
So we have
T1V1γ-1=T2V2γ-1
So T1/T2 = (V2/V1)γ-1
T1/T2 = 3γ-1 , So we know that value of of 0<γ-1<1 , SO 3γ-1 >1 , So T1 > T2.
Hence option C is correct
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