38. Chlorine is produced by the reaction: 4HCl(g)+O2(g)2H2O(g)+2Cl2(g). The feed stream to the reactor consists of 60mol%HCl,36mol%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 from the reactor per mole of the entering gas mixture