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Thermodynamics — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsThermodynamics1 Mark
Question
Why can a Carnot's engine not get 100% efficiency?
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Answer

Due to transmission loss, the energy required to carry the process itself and the inability to build a sink at zero kelvin, one cannot get 100% efficient Carnot's engine.

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