Can entropy change be zero for an irreversible process?

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Entropy change cannot be zero for a closed system undergoing an irreversible process, as irreversible processes inherently increase entropy due to the second law of thermodynamics. However, there are specific conditions, such as when the system reaches equilibrium or when the process is reversible in nature, where entropy change could be negligible. The discussion emphasizes the importance of understanding the nature of the process and the system's state. Clarification on the definitions of reversible and irreversible processes is crucial for accurate analysis. Overall, the consensus is that while entropy change is typically positive in irreversible processes, certain ideal conditions may lead to minimal or zero change.
supermesh
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Homework Statement


Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks!


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supermesh said:
Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks!

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