To determine if the reaction would occur without the addition of energy, we need to calculate the overall change in bond energy.
The bonds broken are A-B and B-B, with a total bond energy of (427 + 239) = 666 kJ/mol.
The bond formed is A-A, with a bond energy of 432 kJ/mol.
The overall change in bond energy is (432 - 666) = -234 kJ/mol.
Since the overall change in bond energy is negative, the reaction would release energy and occur spontaneously without the addition of energy.
Based on the reaction and bond energies listed in the table, would this reaction occur without the addition of energy?
bond: Bond Energy kj/mol:
A-A 432
B-B 239
A-B 427
1 answer
1 answer