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CGP EDU Academic Team
Published on: September 12, 2026
A heat engine operates between a cold reservoir at temperature T 2 =400Kand a hot reservoir at temperature T 1 . It takes 300J of heat from the hot reservoir and delivers 240J of heat to the cold reservoir in a cycle. The minimum temperature of the hot reservoir has to be K.
Text Solution
Verified by ExpertsThe correct answer is:
500
(500)
Work done 
Efficiency 
Efficiency 
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