P4.34 Ethylene glycol (HOCH₂CH₂OH), used as an antifreeze, is

produced by reacting ethylene oxide with water. A side reaction produces

an undesireable dimer, DEG:

The reactor feed is 10 gmol/min ethylene oxide and 30 gmol/min water. If

the fractional conversion of ethylene oxide is 0.92 and the selectivity is

0.85, what is the reactor outlet composition and the vield?