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For a process from state 1 to state 2, heat transfer in a reversible process is given by

For a process from state 1 to state 2, heat transfer in a reversible process is given by Correct Answer Q for reversible=(To)*(S2-S1)

To is the temperature of the surroundings and S1,S2 are the entropies at state 1 and 2 respectively and ΔS(universe)=0.

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