Problem 3 The elementary gas phase reaction A B + C, is carried out isothermally at 5 atm and 500 F. Some of the exit stream is recycled at ratio of 2.5. In the feed, 1.5 times as much B as A is present. In addition, 25% of the feed is a nonreactive diluent. What size of reactor required to achieve an overall conversion of A to C of 80%. (Additional data for the feed: 5 lbmol/s and 7.5 lbmol/s for A and B respectively, 4.17 Ibmol/s for diluent, k = 1500 ftp/Ibmoles)