4. (20 pts) A gas mixture containing 6.0mol%SO2 and 94.0% water is to scrubbed with water in a tower packed with 1-in Intalox saddles (ceramic) to remove the SO2 so that the exit gas will contain no more than 0.5mol%SO2. The tower must treat 2200kg/h of gas and is to be designed using 55% flooding velocity. The water flow rate is 70,000kg/h. Operating conditions are isothermal and isobaric at 30C and 1atm. Additional Data: Equilibrium: y=25.7x at 30C 1. Ideal gas law applies to the gas mixture 2. Gas density is based on the average molecular weight of ingt diameter (in ft ), and the total pressure Assumptions: Determine the concentration of the exit liquid stream, the total dia s drop (in psi)