please answer these questions. (on paper would be ideal) thank you.

N2(g)+O2(g)+Cl2(g)2NOCl(g)N2(g)+O2(g)2NO(g)Cl2(g)2Cl(g)H=243.2kJH=+105.2kJH=+180.4kJ (Value: 4) Calculate H for the reaction: NOCl(g)+Cl(g)NO(g)+Cl2(g) b) Sketch and label a potential energy diagram (enthalpy diagram) for the industrial conversion of gaseous ethane (C2H6) to gaseous ethane (C2H4). Label the reactants and products; indicate the numerical value of H; and state whether the reaction is endothermic or exothermic. (Value: 4) 53. The chemical treatment of swimming pools uses the disinfectant hyopchlorous acid, HOCl, which helps maintain low levels of bacteria and algae in the water. Sodium hypochlorite, NaOCl, is often used for this purpose. The NaOCl dissolves to form OClions, and the following equilibrium is established in the pool. OCl(aq)+H2O(l)4HOCl(aq)+OH(aq)Kb=3.45107 a) Write the Kb expression. (Value: 1) b) The initial concentration of OClin the swimming pool is 1.68104mol/L. What is the pH of the solution? (Value: 3) c) Ideally the [HOCl]=[OCl]in the pool. To what pH should the pool be adjusted so this will be true? (Value: 2) d) A lower than normal pH value may be very irritating to the eyes of swimmers. Using the equation and Le Chtelier's principle, explain why a lower pH might have this effect. 54. The corrosion of iron is similar to the reactions that occur in an electrochemical cell. Oxidation and reduction occur at separate places on the metal and the circuit is completed by an electrolyte in solution. One possible corrosion reaction is: Fe(s)+O2(g)+H2O(l)Fe2(oq)+OH(aq) a) Identify the substance oxidized and the substance reduced. (Value: 1) b) Using the half-reactions on page 11 of the Data Booklet, write the balanced redox equation. (Value: 2) c) Prove the reaction is spontaneous at standard conditions. (Value: 1 )