2. Consider the facts about benzyne isomers below: i) Benzynes exist in equilibrium between closed shell and diradical forms: ortho-benzyne para-benzyne ii) ortho-benzyne AH (kcal mol!) 105.9 para-benzyne 137.8 benzene 19.8 a. What is the most stable isomer of benzyne and why? b. Write the equilibrium expression and estimate Keg (at standard state) for the hypothetical interconversion between ortho- and para-benzyne. c. Now consider the hydrogenation of the benzyne molecules with one equivalent of H2 to form benzene. Put these two reactions on one reaction coordinate diagram. Label AHhydrogenation and any other known energy values on your diagram