A substance undergoes a series of reversible processes that bring it back to its initial state.In this cycle,heat Q_x is absorbed by the substance and heat Q_y is rejected.The net amount of work performed by the substance is

Question

Quizplus · Accepted Answer

According to the first law of thermodynamics, for a closed system, the net amount of work done is equal to the difference between the heat absorbed and the heat rejected. Therefore, the net amount of work performed by the substance in one cycle is given by: net work = heat absorbed - heat rejected net work = Q_x - Q_y Hence, the best choice is option B.

A Substance Undergoes a Series of Reversible Processes That Bring