Given the balanced equation representing a reaction:
\[ \text{O}_2 \rightarrow \text{O} + \text{O} \]
What occurs during this reaction?
1. Energy is absorbed as bonds are broken.
2. Energy is absorbed as bonds are formed.
3. Energy is released as bonds are broken.
4. Energy is released as bonds are formed.
Answer (3)
In the equation given above, a molecule of oxygen breaks into two atoms of oxygen showing that the bond is being broken. When bonds break, energy is absorbed and when bonds are formed energy is released. Hence, the answer to this question is (1).
Energy is absorbed when the **molecular **oxygen O2 is split into two oxygen atoms (O) as bonds are broken. ;
In the reaction O 2 → O + O , energy is absorbed as the O=O bond is broken. Therefore, the correct answer is option 1: Energy is absorbed as bonds are broken. No new bonds are formed in this reaction, so the energy remains in the system.
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