answer this two questions pls

2- A gas mixture containing 15 mole\% A and 85 mole % inert is fed to an absorption tower where it is contacted with liquid solvent B which absorbs A. The mole ratio of solvent to gas entering tower is 2:1. The gas leaving the absorber contains 2.5%A,1.5%B and rest inert (on mole basis). Find (3 marks) a. The recovery of solute A b. The fraction of solvent B fed to column lost in gas leaving the tower. s- Describe the rollowing process Ilow alagram (YFW) for cruae oll alstination (4 marks)