1. A gas mixture at 0C and 1 atmosphere flowing at 1.20m3/sec, and containing thirty-seven percent NH3, sixteen percent N2, and forty seven percent H2 is to be scrubbed with water containing a little sulfuric acid at 0C. The exit gas should contain one percent NH3 and the exit liquid 23mol%NH3. Design a packed tower to carry out this task. The tower should use 2 inch Berl saddles, which have a surface area per volume 105m2/m3. It should operate at fifty percent of flooding. Pilot-plant data suggest that the overall gas-side mass transfer coefficient in this tower will be 0.032 meters per second; this value is larger than normal because of the chemical reaction of ammonia with water. In this design: a. What is the flowrate of pure water on the top of the tower? b. What tower diameter should be used? c. How tall should the tower be? 2. How would you increase the efficiency without changing system components? (e.g. tower height, tower diameter should be constant.)