An insulated Piston-Cylinder arrangement contains water. Sixty percent of the total 15 kg of water are in the vapor phase. Steam at 1 Mpa and 400 C degree is allowed to enter the cylinder from a supply line until all of the liquid in the cylinder is caponized. The mass of the piston is such that it maintains a constant pressure of 200 Kpa inside the cylinder. Assume the surroundings to be at 25 C degree and 100 Kpa. Determine a) the amount of steam that enters in the cylinder and b) the entropy generation during this process