A carnot engine operates between two reservoirs of temperature 900 K and 300 K. The engine performs 1200 J of work per cycle. The heat energy in (J) delivered by the engine to the low temperature reservoir, in a cycle, is
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Solution
η=1−T2T1=1−300900=23Given, W=1200JFrom conservation of energyQ1−Q2=Wη=Q1−Q2Q1=WQ1⟹Q1=1800J⇒Q2=Q1−W=600J