Use the reaction to complete the sentence.

2CO+O2→2CO2

Carbon monoxide and oxygen combine to produce carbon dioxide. The total bond energy found in all the bonds of carbon dioxide together is 1,472 kJ . The bond energy of each carbon-oxygen double bond in carbon dioxide is _____.

(1 point)
Responses

1,472 kJ
1472 k J

2,944 kJ
2944 k J

736 kJ
736 k J

368 kJ

3 answers

In the reaction \(2CO + O_2 \rightarrow 2CO_2\), we know that each molecule of carbon dioxide (CO₂) contains two carbon-oxygen (C=O) double bonds.

Since there are 2 CO₂ molecules formed, the total bond energy for the 4 C=O double bonds in these 2 molecules is 1,472 kJ.

To find the bond energy of each carbon-oxygen double bond, we divide the total bond energy by the number of double bonds:

\[ \text{Bond energy per C=O bond} = \frac{1,472 \text{ kJ}}{4} = 368 \text{ kJ}. \]

Therefore, the bond energy of each carbon-oxygen double bond in carbon dioxide is 368 kJ.

are you sure

Yes, let's clarify the calculation step by step to confirm the answer.

In the reaction \(2CO + O_2 \rightarrow 2CO_2\):

  1. Each molecule of carbon dioxide (CO₂) has 2 C=O double bonds.

  2. Since the reaction produces 2 molecules of CO₂, the total number of C=O double bonds created is: \[ 2 \text{ (molecules) } \times 2 \text{ (bonds/molecule)} = 4 \text{ C=O bonds}. \]

  3. The total bond energy for all the bonds in 2 CO₂ is given as 1,472 kJ.

  4. To find the bond energy of each C=O bond, we divide the total bond energy by the number of bonds: \[ \text{Bond energy per C=O bond} = \frac{1,472 \text{ kJ}}{4} = 368 \text{ kJ}. \]

Thus, the bond energy of each carbon-oxygen double bond in carbon dioxide is indeed 368 kJ.

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