If the efficiency of a Carnot engine were to be 100%,the cool reservoirs would have to be

Question

Quizplus · Accepted Answer

According to the Carnot cycle, the efficiency of the engine depends on the temperature difference between the hot reservoir and the cold reservoir. The maximum theoretical efficiency of a Carnot engine occurs when the cold reservoir is at absolute zero (0 K or -273.15°C), therefore choice A is the best choice. As a result, Choice B is incorrect because it is above absolute zero, Choice C is incorrect because it is below the temperature of the hot reservoir, and Choice D is incorrect because it implies that the cold reservoir is hotter than the hot reservoir.

If the Efficiency of a Carnot Engine Were to Be