One hundred g/min of air is mixed with a stream of carbon dioxide. The product stream is analyzed and found to contain 56.7 wt% N2. Calculate the volumetric flow rate of the CO2 feed stream (liters/min at STP) and the mole fraction of the product stream components.

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.