A solid vessel (5m3) contains a mixture of steam and water at pressure of 500kPa. The steam fraction is 85%. How much heat in [kJ] must be de­livered to the mixture to reach the final pressure of 1000kPa? Which is the final tempe­ra­ture?

The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]