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Question
Why a heat engine with 100% efficiency can never be realised in practice ?
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Solution
For 100% efficiency of a heat engine,T1 = ∞ or T2 = 0 KAs absolute zero and infinite temperature cannot be achieved in practice, the efficiency of a heat engine cannot be 100%.
For 100% efficiency of a heat engine,
T1 = ∞ or T2 = 0 K
As absolute zero and infinite temperature cannot be achieved in practice, the efficiency of a heat engine cannot be 100%.
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