14 Calculate the overall energy change (kl) for the reaction. *
(3 Points)
The equation shows the decomposition of hydrogen peroxide.
2 H-0-0-H — 2 H-O-H + O=0
Table 1 shows the bond energies.
1
Table 1
Bond
0-0
0=0
0-H
Bond dissociation
energy in kJ per mole
138
496
463