Are all Quasi-static Processes Reversible?

Debasis Mukhopadhyay; Kamal Bhattacharyya

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arXiv · 0911.5010

Are all Quasi-static Processes Reversible?

Debasis Mukhopadhyay·Kamal Bhattacharyya

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Abstract

A process, carried out in a stepwise manner, becomes quasi-static when the number of intermediate steps tends to infinity. Usually, the net entropy production approaches zero under this limiting condition. Hence, such cases are termed reversible. A favorite example is the introduction of an infinite number of intermediate-temperature reservoirs in between the source and the sink for a non-isothermal heat transfer process. We analyze the situation and conclude that such quasi-static processes are not reversible. Indeed, no non-isothermal heat transfer process can ever be made reversible due to an extraneous work term.

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Debasis Mukhopadhyay, Kamal Bhattacharyya. 2009-11-26. Are all Quasi-static Processes Reversible?. https://arxiv.org/abs/0911.5010

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