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 the carbon dioxide is _____.

(1 point)
Responses

368 kJ
368 kJ

2,944 kJ
2,944 kJ

736 kJ
736 kJ

1,472 kJ
1,472 kJ

1 answer

In the reaction \(2CO + O2 → 2CO2\), each carbon dioxide molecule (CO2) consists of two carbon-oxygen double bonds. The total bond energy for all bonds in the two molecules of carbon dioxide is 1,472 kJ.

Since there are 2 CO2 molecules, the bond energy for each carbon-oxygen double bond can be calculated as follows:

  1. Total bond energy for 2 CO2 = 1,472 kJ
  2. Each CO2 has 2 C=O bonds. Therefore, in 2 CO2 molecules, there are \(2 \times 2 = 4\) C=O bonds.
  3. The bond energy of each carbon-oxygen double bond can be calculated by dividing the total bond energy by the number of C=O 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 the carbon dioxide is 368 kJ.