Chlorine is produced by the reaction: 4HCI(g) + O2 ( 2H2O(g) + 2Cl2(g). The feed stream to the reactor consists of 60 mol-% HCl. 36 moI-% O2, and 4 mol-% N2, and it enters the reactor at 550(C. If the conversion of HCl is 75% and if the process is isothermal, how much heat must be transferred from the reactor per mole of the entering gas mixture?