12. The following reaction is at equilibrium. The reaction is endothermic, H=206kJ/mol. CH4(g)+H2O(g)CO(g)+3H2(g) a. If the reaction is heated, will the reaction shift to the product side or reactant side? b. If the reaction is cooled , will the concentration of H2 go up or will it go down? c. If additional CO is added to the equilibrium mixture, will the concentration of H2 go up or will it go down