Energy is released when methane undergoes a combustion reaction according to the

Question

Energy is released when methane undergoes a combustion reaction according to the following equation:

CH4(g) + 2O2(g) ?  CO2(g) + 2H2O(g)

Which of the following is responsible for the release of energy?

Energy is released when methane undergoes a combustion reaction according to the following equation:

CH4(g) + 2O2(g) ?  CO2(g) + 2H2O(g)

Which of the following is responsible for the release of energy?

Breaking carbon - hydrogen bonds
Forming carbon - oxygen bonds
Breaking oxygen - oxygen bonds
Breaking both oxygen - oxygen and carbon - hydrogen bonds.

Explanation / Answer

option D Breaking both oxygen - oxygen and carbon - hydrogen bonds.

Energy released = [Energy of breaking of bonds of reactants] - [energy of formation of bands of products]

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