Benzaldehyde is produced from toluene in the catalytic reaction C6H5CH3 + O2 → C6HCH0 + H2O Dry air and toluene vapor are mixed and fed to the reactor at 350°F and I atm. Air is supplied in 100% excess. Of the toluene fed to the reactor. 13% reacts to form Benzaldehyde and 0.5% reacts with oxygen to form CO2 and H2O. The product gases leave the reactor at 379°F and 1 atm. Water is circulated through a jacket surrounding the reactor, entering at 80°F and leaving at 105°F. During a four-hour test period 29.3lbm of water is condensed from the product gases. (Total condensation may be assumed.) The standard heat of formation of herizaldehyde vapor is —17,200 Btu/lb-mole; the heat capacities of both toluene and Benzaldehyde vapors are approximately 31 Btu/(1b-mole°F); and that of liquid Benzaldehyde is 46 Btu/(lb-mole∙°F).

(a) Calculate the volumetric flow rates (ft3/h) of the combined feed stream to the reactor and the product gas.

(b) Calculate the required rate of heat transfer from the reactor (Btu/h) and the flow rate of the cooling water (gal/min),