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  4. A thermodynamical system is changed from state (P1 , V1) to (P2 , V2) by two different processes. The quantity which will remain the same will be

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Q. A thermodynamical system is changed from state $\left(P_{1} , \, V_{1}\right)$ to $\left(P_{2} , \, V_{2}\right)$ by two different processes. The quantity which will remain the same will be

NTA AbhyasNTA Abhyas 2020Thermodynamics

Solution:

For all processes, the change in internal energy $ΔU=Q-W$ does not change. It depends only on initial and final states.