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1. option 1st is correct as u discussed a lot in one previous question of urs.. so statement 1is correct .. 2. for reversible cyclic process, close integration of dQ/T=0 so dQ=0 wh...

As far as I understood the question. Options 1, 3, 4 should be correct. Do let me know, if it is so? Then only I would share my thoughts. Best regards.

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As you know entropy in reversible process is constant so change in entropy would be zero.so 1 is correct.  In an ideal thermodynamically reversible process, the energy from work pe...