An important feature of the Carnot cycle is that
A)its efficiency can be 100%.
B)its efficiency depends only on the absolute temperature of the hot reservoir used.
C)its efficiency is determined by the temperatures of the hot and cold reservoirs between which it works and by the properties of the working substance used,and on nothing else.
D)it is an example of an irreversible process that can be analyzed exactly without approximations.
E)no engine can be more efficient than a Carnot engine operating between the same two temperatures.

Question

Quizplus · Accepted Answer

The Carnot cycle is the most efficient cycle that can be achieved between two temperatures, and no engine can be more efficient than a Carnot engine operating between the same two temperatures. Its efficiency is determined by the temperature difference between the hot and cold reservoirs, and on the properties of the working substance used. Therefore, choice E is the best choice.

An Important Feature of the Carnot Cycle Is That