6. Suppose that a reaction of stoichiometry A+2B=2Y+2Z is believed to occur according to the mechanism Ak1k12XX+Bk2Y+Z (a) If the first step reaches the equilibrium very rapidly as compared to the second step, derive the expression for the rate of formation of the product Y. (5\%) (a) Derive the expression for the activation energy (Ea) of the above rate expression in terms of E1,E1,E2, which denote the activation energies for the rate constants k1,k1,k2, respectively.(7\%) (12%)