Show that the work done on the system in changing quasistatically from the initial state (V i , p i ) to the final state (V f , p f ) along the path shown in the figure below is the negative of the ar...Show that the work done on the system in changing quasistatically from the initial state (V i , p i ) to the final state (V f , p f ) along the path shown in the figure below is the negative of the area under the curve.