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30 May, 06:49

Is it possible to have a heat engine with efficiency of 100%?

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  1. 30 May, 07:00
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    No

    Explanation:

    Heat engines are used for converting the heat into mechanical energy which is used for doing mechanical work.

    The efficiency of heat engine is the fraction of mechanical energy to the thermal energy. The efficiency can not be 100% as some of the energy always loss due to friction and motion of the body parts of the heat engine.
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