6. (18) A gas stream containing NH3 is scrubbed with pure water in a packed bed tower. The minimum operating line for the NH3-Water scrubbing is given in the graph below. According to the graph a. Determine enterance gas molar ratio ( Ybottom, polluted) and exit gas ( Ytop, cleaned gas) molar ratio. b. Determine molar fraction of NH3 in the entering and exiting air stream c. According tho the minimum operating line, what is the required liquid amount per minute? Give your answer in kg/min. Enterance carrier gas molar rate is 32mol/min. ( H2O=18g/mole )