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Why a heat engine with 100% efficiency can never be realized in practice?

Why a heat engine with 100% efficiency can never be realized in practice?
 

Grade:12

3 Answers

santosh kumar
108 Points
7 years ago
For 100% efficiency T1 = ∞ (or) T2 = 0 k. As absolute zero and infinite temperature cannot be
realized in practice, the efficiency of a heat engine cannot have 100%. The efficiency of a heat
engine is always less than unity.
HEMACHANDRA
11 Points
7 years ago
For 100% efficiency T1 = ∞ (or) T2 = 0 k. As absolute zero and infinite temperature cannot berealized in practice, the efficiency of a heat engine cannot have 100%. The efficiency of a heatengine is always less than unity.
SAI SARDAR
1700 Points
7 years ago
in a hest engine effieciency is more important.for every engine effieciency is less than 100% because in engine is not using all amount of energy it can looses some energy by working substance.

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