Question

Use the reaction to complete the sentence
200+ 02 - 2002
Carbon monoxide and oxygen combine to produce carbon dioxide. The total bond energy of the products is 1,472 kJ. The bond energy of each carbon-oxygen bond in carbon dioxide is
(1 point)
O2,944 kJ
O 368 kJ
O 736 kJ
o 1.472 kJ

Answer 1

The bond energy of each carbon-oxygen bond in carbon dioxide is 368 kJ.

The correct equation of the reaction is;

2CO(g) + O2(g) -----> 2CO2 (g)

Note that in one molecule of CO2, there are four C - O bonds. If we have four C - O bonds, the bond energy of the molecule given is the sum of the energies of these four C- O bonds.

So, let the energy of each C - O bond be x

1,472 kJ = 4x

x = 1,472 kJ/4

= 368 kJ

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