Pressure vs.volume graphs for a certain gas undergoing five different cyclic processes are shown below.During which cycle does the gas do the greatest positive work?

Question

Quizplus · Accepted Answer

The work done by the gas during a cycle is given by the area enclosed by the cycle on a pressure-volume graph. 
From the given graphs, it can be seen that cycle IV has the largest area enclosed, indicating that the gas does the greatest positive work during this cycle.

Pressure Vs