Apump is used to transfer water from an open tank to a closed tank containing air at 500 kpa above the water. the pump has an efficiency of 80% and transfers 2000 l/min of water between the tanks. the water level in the two tanks is the same and you can assume that the tanks are large enough that the water level remains constant.

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.