3) 1000 kg/h of a solution (L)containing xo=0.01 kg nicotine/kg of water is being extracted by V=1200 kg/h of pure kerosene (N+1 = 0) in a counter current extractor containing eight (8) stages. The equilibrium relation is y = 0.86 x , where y is kg of nicotine/kg of kerosene and x is kg of nicotine/kg of water Assuming steady-state operation and ideal equilibrium stage, a) Show that the nicotine composition in the kerosene leaving the n'" stage, Yn, can be exspressed as follows KXoYN1 YN - ANO 1- N1 + 1 - N1 B B-4 VK xo original feed composition (kg of nicotine/kg of water) YN 11 : nicotine composition in original kerosene feed (kg of nicotine/kg of kerosene) L :flow rate of water phase (kg/h) V flow rate of kerosene phase (kg/h) I K Equilibrium constant b) Calculate the exit composition of nicotine in kerosene phase, y