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Class 12 Tuition > Learn Class XI-XII Tuition (PUC) > If the temperature of the cold body is decreased the...
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If the temperature of the cold body is decreased the efficiency of a carnot engine __________. (Decreases, Increases, Remains constant)

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Increases
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Decrease
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Expert in IIT NEET entrance exams

Efficiency = 1 - (T1/T2) T1 temp of sink T2 temp of source As T1 decrease T1/T2 ratio decrease So efficiency increased
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Increases
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Mechanical Engineer

Increases as T2-T1 will increase
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increases
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Decrease because T2-T1 will increase and so will the efficiency. But remember, like all other properties, after a complete cycle, the entropy of the working gas in the system will be same as before. We are only talking of the difference in the entropy change of the universe. As the engine will now...
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Decrease because T2-T1 will increase and so will the efficiency. But remember, like all other properties, after a complete cycle, the entropy of the working gas in the system will be same as before. We are only talking of the difference in the entropy change of the universe. As the engine will now be doing more work for same heat consume read less
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We are only talking of the difference in the entropy change of the universe. As the engine will now be doing more work for same heat consume
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increase
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