A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder device at 125kPa. Initially, 2kg of water is in the liquid phase and the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 300kPa. Heat transfer continue until the total volume increased by 20%. Determine a) The initial and final temperature, b) the mass of the liquid water when the piston first starts moving, and c) work done during the process. Also, show the process on a P-v diagram.