Q5: Ammonia is removed from a 10 percent ammonia-air mixture by scrubbing with water in a packed tower, so that 99.9 percent of the ammonia is removed. What is the required height of tower? The gas enters at 1.2 kg/ms, the water rate is 0.94 kg/m.s and Kaa is 8 10 k mol/s m' (RN/m). The equilibrium data are Concentration(k mol NHk mol water) Partial pressure NH (KN/m) 0.021 0.031 0.042 0.053 0.079 0.106 1.6 2.4 3.3 4.2 6.7 9.3

Q5: Ammonia is removed from a 10 percent ammenis air mixture by scrubbing with water in a packed towar, so that 99.9 percent of the ammonia is removed. What is the required height of tower? The gas enters at 1.2ke/m2, the water rate is 0.94kg/m2 is and K5 is 8103kmol/sm3(RN/m2). The equilibrium data are