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A Carnot's cycle operating between T₁= 600K and T₂ = 300 K producing 1.5 kJ of mechanical work per cycle. The heat transferred to the engine by the reservoirs

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2.5 kJ

3 kJ

3.5 kJ

4 kJ

answer is B.

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Detailed Solution

$\frac{W}{Q_{1}} = 1 - \frac{T_{2}}{T_{1}} \Rightarrow \frac{1.5 \times 10^{3}}{Q_{1}} = 1 - \frac{300}{600}; Q_{1} = 3 kJ$

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