An insulated piston-cylinder device initially contains 0.01m^3 of steam at 200 degrees C. The force on the piston is such that it maintains a constant pressure of 400 kPa inside. A valve is now opened nad steam at 1 MPa, 200 degrees C is allowed to enter the cylinder until the volume inside increases to 0.04 m^3. Determine (a) the final temperature of the steam and (b) the amount of mass transfer