• Toluene is partially oxidized to benzoic acid over a selective catalyst in a gas-phase flow reactor. The reactor feed is a mixture of toluene and oxygen in steam, flowing at 1 atm and 125°C. The toluene:oxygen feed ratio is controlled to 1:0.6 (mol toluene/mol oxygen). The oxygen reacts completely. The reactor is well-insulated. The catalyst is deactivated at temperatures above 350°C, and the steam diluent flow rate is adjusted to keep the reactor temperature from exceeding that limit. What steam rate (gmol steam/gmol toluene fed) do you recommend? What reactor outlet temperature would be reached if no steam were added?