A heat engine operates between a cold reservoir|KTG|JEE-MAIN

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JEE-MAIN 2021

27-08-2021 S2

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A heat engine operates between a cold reservoir at temperature $T_2=400 \mathrm{~K}$ and a hot reservoir at temperature $T_1$. It takes 300 J of heat from the hot reservoir and delivers 240 J of heat to the cold reservoir in a cycle. The minimum temperature of the hot reservoir has to be $\_\_\_\_$ K. [ [

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