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NEET 2003 (AIPMT) · Heat Engines, Refrigerators & Second Law

Heat Engines, Refrigerators & Second Law question from NEET 2003 (AIPMT)

Q86NEET 2003 · AIPMTEasy

Heat Engines, Refrigerators & Second Law

An ideal gas heat engine operates in a Carnot cycle between 227oC and 127oC. It absorbs 6 kcal at the higher temperature. The amount of heat (in kcal) converted into work is equal to

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Answer: (d)

$T_1 = 500$ K, $T_2 = 400$ K, so $\eta = 1 - \frac{400}{500} = 0.2$
$W = 0.2 \times 6 = 1.2$ kcal
So the answer is (d) 1.2.

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