In an adiabatic expansion of a gas initial and final temperatures are $$T1$$ and $$T2$$ respectively, then the change in internal energy of the gas is

Correct option is 1Rγ−1(T2−T1)

Questions

In an adiabatic expansion of a gas initial and final temperatures are T₁ and T₂ respectively, then the change in internal energy of the gas is

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Rγ−1(T2−T1)

Rγ−1(T1−T2)

R(T1−T2)

Zero

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detailed solution

Correct option is A

ΔU=−ΔW=−RT1−T2(γ−1)=RT2−T1γ−1

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