AP Chemistry
2.6 Resonance and Formal Charge
2.2 Intramolecular Force and Potential Energy
A student compiles spectroscopic and thermodynamic data for three substances containing oxygen-oxygen bonds, as shown in the table below.
Which of the following best explains the intermediate bond length and bond dissociation energy observed for ozone, \(\text{O}_3\), relative to \(\text{H}_2\text{O}_2\) and \(\text{O}_2\)?
| Substance | Chemical Formula | Average \(\text{O}-\text{O}\) Bond Length (\(\text{pm}\)) | \(\text{O}-\text{O}\) Bond Dissociation Energy (\(\text{kJ/mol}\)) |
|---|---|---|---|
| Hydrogen peroxide | \(\text{H}_2\text{O}_2\) | \(148\) | \(146\) |
| Ozone | \(\text{O}_3\) | \(128\) | \(302\) |
| Oxygen gas | \(\text{O}_2\) | \(121\) | \(498\) |
Which of the following best explains the intermediate bond length and bond dissociation energy observed for ozone, \(\text{O}_3\), relative to \(\text{H}_2\text{O}_2\) and \(\text{O}_2\)?
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