Q3 (only BSc) A piston-cylinder device initially contains 0.4 kg steam at 3.5 MPa and 400C. Now the steam loses heat to the surroundings and the piston moves down, hitting a set of stops at which the volume is lessthan the original volume by 20%. The cooling continues until the cylinder contains water at 150C. Determine (a) the final pressure and the final quality (if mixture) and (b) the change of the total enthalpy for water between the initial state and the final state. Also, (c) show the process on the T-v with respect to saturation lines. Steam 0.4 kg 3.5 MPa