Water with a quality of 70% is contained in a cylinder with a weight on a piston that maintains a water pressure of 500 kPa. The water is heated until the temperature reaches 250 degree C. Sketch the device, summarize the "knowns", and then write out the general form for the conservation of mass and conservation of energy; simplify them for this problem, and then clearly state any assumptions you have made. Sketch a T-v diagram for this process. Number each significant state for reference. Determine the pressure, temperature, volume, and internal energy for the initial and final states; summarize your results, in a table. How much work is there for this process? Discuss. How much heat transfer is there for this process? Discuss. What property remains constant during this process?