2. The homogeneous gas-phase decomposition of phosphine 4PH3(g)P4(g)+6H2(g) proceeds at 649C with the first-order rate r(PH3)=(10/h)CPH3 a) What size of plug flow reactor (PFR) operating at 649C and 460kPa can produce 80% conversion of a feed consisting of 40mol/h of pure phosphine? b) What size of plug flow reactor (PFR) operating at 649C and 11.4atm is needed for 75% conversion of 10mol/hr of phosphine in a 2/3 phosphine- 1/3 inert feed