Use the data given below to construct a Born-Haber cycle to determine the bond energy of O2.
\Delta H°(kJ)
Na(s) --> Na(g) 107
Na(g) --> Na+(g) + e- 496
O(g) + e- --> O-(g) -141
O-(g) + e- --> O2-(g) 878
2 Na(s) + 1/2O2(g) --> Na2O(s) -416
2 Na+(g) + O2-(g) --> Na2O(s) -2608
Answer Options:
a. 426 kJ
b. 852 kJ
c. 498 kJ
d. 356 kJ
e. 249 kJ