please explain all with PV diagram too!

a. 1. Use your DIY H20 P-V diagram! Answer the following questions about water in tank. A pressure cooker is filled to the brim with water at 80C and the lid is locked. The temperature is then changed until the contents become saturated liquid. What is the temperature and pressure at that point? b. A closed pressure cooker contains 50 % by volume liquid and 50 % water vapor at 1 bar. The temperature (or pressure) is then changed until the point where the contents become a single phase. Is that phase saturated liquid or saturated vapor? c. A closed rigid vessel that contains a pure fluid is cooled until the contents become saturated vapor. Determine whether the initial state is superheated vapor, compressed liquid, or vapor/liquid. d. A closed rigid vessel that contains a pure fluid is heated until the contents become saturated liquid. Determine whether the initial state is superheated vapor, compressed liquid, or vapor/liquid