In the process shown,about how much work in J is done by the system in going from point A to point B?

Question

Quizplus · Accepted Answer

The work done by the system is given by the area enclosed by the process on a pressure-volume diagram. Since the area under the isotherm is negative (since the pressure is decreasing while the volume is increasing), and the area under the adiabat is positive (since the volume is constant and the pressure is increasing), the net area enclosed by the process is negative. The approximate area can be calculated by dividing the enclosed region into a rectangle and a triangle, with areas of 600 J and 150 J, respectively. Therefore, the net work done by the system is approximately -450 J, which is closest to choice D.

In the Process Shown,about How Much Work in J Is