It is desired to absorb 98% of the ammonia present in a mixture of ammonia and air at 20% by weight of ammonia, and which flows at a rate of 100 kg/h towards an isothermal absorption column of countercurrent plates, which works at atmospheric pressure and at 20\ deg C. Pure water will be used with a flow of 30% more than its minimum flow. a) Represent on an X - Y diagram, the equilibrium curve, the minimum flow ratio curve and the operating curve. b) Determine the volumetric flow of water to be injected expressed in L/h. c) Determine the molar flows of the currents involved. d) Determine the number of ideal stages (theoretical plates) that the column should have. e) Determine the number of actual plates if the average efficiency is 45%