Chlorine is produced by the reaction: 4HCI(g) + O2(g) 2H2O(g) + 2C12(9). The feed stream to the reactor consists of 60 mol-% HCI, 36 mol % O2, and 4 mol-% N2, and it enters the reactor at 550C. If the conversion of HCl is 75% and if the process is isothermal, how much heat must be transferred to or from the reactor per mole of the entering gas mixture