Question $4$

What is the NET ENERGY CHANGE in a cycle? Please select ONE of the answers below:

$0$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}pdV$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{p}{V}dV$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}pVdV$