Ethylene oxide is produced by the catalytic oxidation of ethylene: c2h4 g 1 2 o2 g ! c2h4o g an undesired competing reaction is the combustion of ethylene to co2. 544 chapter 9 balances on reactive processes the feed to a reactor contains 2mol c2h4/mol o2. the conversion and yield in the reactor are respectively 25% and 0.70mol c2h4o produced/mol c2h4 consumed. a multiple-unit process separates the reactor outlet stream components: c2h4 and o2 are recycled to the reactor, c2h4o is sold, and co2 and h2o are discarded. the reactor inlet and outlet streams are each at 450°c, and the fresh feed and all species leaving the separation process are at 25°c. the combined fresh feedrecycle stream is preheated to 450°c. (a) taking a basis of 2 mol of ethylene entering the reactor, draw and label a flowchart of the complete process (show the separation process as a single unit) and calculate the molar amounts and compositions of all process streams. (b) calculate the heat requirement (kj) for the entire process and that