please only do number 2) using the info from number 1)

the answers are given but please day how you hot it in detail

Question 1: It is desired to separate a nitrogen-hydrogen mixture using a Permasep membrane 1mm thick. The permeability of hydrogen is P'A = 1.65x100cm (STP).cm/ (s.cm'.cmHg) and nitrogen is P's = 0.031x10 10cm (STP).cm/ (s.cm.cmHg). The feed composition is 0.35 mole fraction of hydrogen and feed rate is L=0.5x10 cm (STP)/s and the fraction cut =0.15. The pressures selected for use are ph = 150cmHg and pi = 80cmHg. Assuming the arrangement is cross flow, calculate the permeate composition, the reject composition and the area of the membrane required to achieve this separation. Answer: X=0.307 Yp=0.593 Am=1.457x10 cm? Question 2: Using the same feed stream as described in Question 1 above, the desired reject composition is 0.2 and the cut is not known. The upstream and downstream pressures, membrane thickness and permeabilities are the same. Assuming once again a cross flow arrangement, calculate the permeate composition, the fraction of the feed permeated and the area of the membrane required to achieve this separation. Answer: O=0.4961 Yp=0.5024 Am=5.796x10 cm