Rigid vessel is divided into two parts A and B by means of frictionless, perfectly conducting piston. Initially, part A contains 0.4 m of air (ideal gas) at 10 bar pressure and part B contains 0.4 m of wet steam at 10 bar. Heat is now added to both parts until all the water in part B is evaporated. At this condition the pressure in part B is 15 bar. Determine the initial quality of steam in part B and the total amount of heat added to both parts.