please do the material balance

Humidification and Oxygenation Process in the Body: An exp. on the growth rate of certain organisms requires an environment of humid air enriched in oxygen. Three input streams are fed into an evaporator to produce an output stream with the desired composition. A: liquid water, fed at a rate of 20 cm3/min, B: Air, C: Pure oxygen (with a molar flow rate one-fifth of the molar flow rate of stream B) 0.2 n 1 mol O2/min Р С n3 mol/min 0.015 mol H20/mol y mol O2/mol (0.985 - y) mol N2/mol A А. IB n1 mol air/min 0.21 mol O2/mol 0.79 mol N2/mol 20 cm3 H20 /min n2 mol H20/min