1 [50 points] Ethylene oxide (EO), whose chemical formula is C2H4O, is produced in 4 world-scale plants in Alberta. It is used to make ethylene glycol which, in turn, is used in automobile coolants and to produce polyester. A flowsheet (Figure 1) and a partially completed stream table (Table 1) are provided. There are two reactions in the process, and the extent of each of these reactions is provided. In reaction R1, ethylene reacts with oxygen to form ethylene oxide. The second reaction, R2, which is undesired, has ethylene reacting with oxygen to form carbon dioxide and water. ????1: ????2????4 + 0.5 ????2 ????2????4???? ????1 = 400 ????????????/???? ????2: ????2????4 + 3 ????2 2 ????????2 + 2 ????2???? ????2 = 80 ????????????/???? The oxygen feed contains inert (which does not react) at 5000 ppm (on a molar basis), which must be purged. The flow rate of the purge (stream 8) is set to control the reactor feed (stream 3) at 10 mol% inert. a) What is the limiting reactant? Explain. b) Determine the molar flow rate of inert in the reactor feed (stream 3) and molar flow rates of all reactor components in the reactor effluent (stream 4) and enter them into the stream table. c) What is the fractional conversion of oxygen in the reactor? d) What is the selectivity of the reactor? e) Use all the information provided to complete the stream table. Provide the completed stream table with your assignment. f) Demonstrate an overall carbon balance for the process (i.e., an elemental balance on carbon for the over