Task id12382

A heavy piston lying tightly against the walls of a cylindrical vessel, lying on a thin layer of volatile liquid, is slowly raised. The ambient temperature is constant. Show graphically the nature of the dependence of the pressure on the inner surface of the piston on its height above the bottom of the vessel p(X). X=0 is the coordinate of the bottom of the vessel, X=X0 is the initial position of the piston