66. Consider the following reaction:
A2 + B2 → 2AB △H = –235 kJ
The bond energy for A2 is half the amount of AB. The bond energy of B2 = 247 kJ/mol. What is the bond energy of A2?
(A) 482 kJ/mol
(B) 238 kJ/mol
(C) 161 kJ/mol
(D) –118 kJ/mol
(E) –129 kJ/mol
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