AP Chemistry
6.7 Bond Enthalpies
A student models the complete atomization of carbon-containing gases in a high-temperature plasma reactor. The two carbon–oxygen bonds in \(\text{CO}_2\text{(g)}\) are equivalent.
Which choice correctly ranks the carbon–oxygen bond enthalpies from greatest to least and gives the best justification?
| Atomization process | \(\Delta H\) |
|---|---|
| \(\text{CO(g)} \rightarrow \text{C(g)} + \text{O(g)}\) | \(+1070\ \text{kJ/mol}\) |
| \(\text{CO}_2\text{(g)} \rightarrow \text{C(g)} + 2\text{O(g)}\) | \(+1600\ \text{kJ/mol}\) |
Which choice correctly ranks the carbon–oxygen bond enthalpies from greatest to least and gives the best justification?
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