A boiler of volume 1 m3 contains wet steam of quality 0.85 at 10 bar. The inlet and outlet valves of the boiler are closed and energy addition as heat is stopped. After some time, the pressure of...

A boiler of volume 1 m3 contains wet steam of quality 0.85 at 10 bar. The inlet and outlet valves of the boiler are closed and energy addition as heat is stopped. After some time, the pressure of steam is found 4 bars. Determine:

the mass of liquid and vapor in the boiler at the end, and