Air, modeled as an ideal gas, enters a well-insulated diffuse operating at steady state at 270K with a velocity of 180m/s. For negligible potential energy effects, determine the exit temperature in K. The exit velocity is 48.4 m/s.

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.