c) Pure water with a flow rate of 250 kgmol/h.m2 is used to absorb 99 mol% ammonia from an air stream in a tray tower at 293 K. The entering gas contains 6 mol% ammonia at a total pressure of 101.3 kPa. The inlet gas stream flow rate is 188 kgmol/h.m2. The vapour- liquid relationship of ammonia water system is given by y* = 1.2x, where y* is the mole fraction of ammonia in vapour, in equilibrium with x mole fraction of ammonia in liquid. Determine the operating line and equilibrium line of the absorption and plot them. Attach the plotted graph to the answer script. (10 marks)