Question

whem the temperature of source and Sink
of a heat engine become equal ,the efficiency will be​

Answer 1

Answer:

Such a process is an idealization because some temperature difference is always needed to drive the flow of heat between source/sink and system. In this idealization, there is no loss of ability of this system to perform work as heat flows, The cyclical process is "reversible"... 100% efficient.

Explanation:

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