Home /
Expert Answers /
Physics /
a-carnot-engine-operates-between-reservoirs-of-temperatures-40c-and-25c-pa572
(Solved): A Carnot engine operates between reservoirs of temperatures 40C and 25C.
...
A Carnot engine operates between reservoirs of temperatures 40?C and ?25?C.
???????
A Carnot engine operates between reservoirs of temperatures \( 40^{\circ} \mathrm{C} \) and \( -25^{\circ} \mathrm{C} \). (i) If the Carnot engine does \( 50 \mathrm{~J} \) of work on its surroundings in a cycle, how much heat enters the cold reservoir per cycle? (ii) Assuming that the cold reservoir is maintained at \( -25^{\circ} \mathrm{C} \), to what temperature would the hot reservoir need to be changed to in order to double the efficiency of the engine?