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  1. A system undergoes a State change from 1 to 2.According to the second law of thermodynamics, for the process to be feasible, the entropy change, S2 – S1 of the system
    1. is positive or zero
    2. is negative or zero
    3. is zero
    4. can be positive, negative or zero
Correct Option: D

Entropy of irreversible process always increases.



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