p. 2150 Situation 6 - A tower packed with Flexipoc Type 2y structured packing (FP22 to be used o renove 99.5% of the ammonia from an air strcam containing an annonia mole fraction o. 0.005. The towor is to operate isothermally at 100 degF and 1 atm. The armonia is to be absorbed in an aqueous solution of nitric acid. The tower diameter has been selected to give an F factor of 2.0 1: 0.0.2 (ft/sec) (lb/cuft)** and a liquid loading of 15 gal/min. The density of the air stream is 0.0709 Ib/cufb., and that of the water is 62 lb/cuft. ML = 12 53. What is the gas to liquid ratio L /? aint: calculate the molar M M fluxes of the gas and liquid first. ci A. 6.56 C) 6.25 B. 6.52 B, 6.65 1 54. What concentration of acid should be.sed to enauze that the maximum absorption rate is obtained throughou's the entire tower? A.; 0.0743 gmol/L C. 0.0437.gmol/L 8.) 0.0473 gmol/L D, 0.0734 gitio.1/L 1 2a e 55. What is the height of the packing for physical absorption at the same conditions? A. 6.78 feet C. 6.86 feet B. 6.68 feet D. 6.96 feet Po Con