A stream carrying benzene vapor is merged with a stream carrying pure oxygen; the

resulting stream is being merged with a recycle stream specified below and enters a

reactor where benzene reacts with oxygen to produce carbon dioxide and water. The

stream exiting the reactor enters a separation unit producing two streams; one stream

consists of carbon dioxide and water and is leaving the facility while the stream

consisting of unreacted benzene and oxygen is the recycle stream mentioned earlier. If

the carbon dioxide leaves the facility at a rate of $60$ kmol$/$h and the recycle ratio is $4,$

find the rates of supply of fresh benzene and oxygen as well as the single pass

conversion of benzene