2.7 A rigid insulated tank is separated into two rooms by a stiff plate. Room A of 0.5m3 contains air at 250kPa,300K and room B of 1m3 has air at 500kPa,1000K. The plate is removed and the air comes to a uniform state without any heat transfer. Find the final pressure and temperature assuming that air is ideal gas and use properties from table A.7. Fig. P2.7