JEE Main 2012 Physics question
This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement 1: An inventor claims to have constructed an engine that has an efficiency of 30% when operated between the boiling and freezing points of water. This is not possible. Statement 2: The efficiency of a real engine is always less than the efficiency of a Carnot engine operating between the same two temperatures.
Answer: (4)
Solution
The Carnot limit between 373 K and 273 K is . A real engine cannot exceed the Carnot
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