Discussion :: Chemical Engineering Thermodynamics
- Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the
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A.
Cold reservoir approaches zero |
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B.
Hot reservoir approaches infinity |
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C.
Either A or B |
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D.
Neither A nor B |
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Answer : Option C
Explanation :
Since Efficiency of a Carnot engine is ℵ=1−T2T1
So, when the cold reservoir temperature is zero or when the hot reservoir temperature is infinity we can say that the efficiency is 100%.
But this is purely an impossible situation even under ideal conditions as given by second law of thermodynamics.
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