Table 1 shows the bond energies of some common chemical bonds.
The reaction between hydrogen peroxide (H2O2\text{H}_2\text{O}_2H2O2) and hydrogen gas (H2\text{H}_2H2) to form water (H2O\text{H}_2\text{O}H2O) can be represented using structural formulae:
Table 1
| Bond | Bond energy in kJ mol−1\text{kJ mol}^{-1}kJ mol−1 |
|---|---|
| O−O\text{O}-\text{O}O−O | 146 |
| O−H\text{O}-\text{H}O−H | 463 |
| H−H\text{H}-\text{H}H−H | 436 |
Calculate the overall energy change, in kJ mol−1\text{kJ mol}^{-1}kJ mol−1, for this reaction.
