65.54kJmol−165.54 \mathrm{kJmol}^{-1}65.54kJmol−1
56.45kJmol−156.45 \mathrm{kJmol}^{-1}56.45kJmol−1
156.55kJmol−1156.55 \mathrm{kJmol}^{-1}156.55kJmol−1
65.45kJmol−165.45 \mathrm{kJmol}^{-1}65.45kJmol−1