A reversible heat engine has the PV graph shown. The work done during the entire cycle is

Question

Quizplus · Accepted Answer

The work done during a cyclic process is equal to the area enclosed by the process on a PV diagram. In this case, the area enclosed by the cycle is a trapezoid with a height of 4 kPa and a base of 1.5 m^3 to 2.5 m^3, so the work done is:

W = (1/2)(4 kPa)(2.5 m^3 - 1.5 m^3)
W = 2.5 kJ

Therefore, the best answer is B) 2.5 kJ.

A Reversible Heat Engine Has the PV Graph Shown