# Why does ozone cleave alkenes? [closed]

I am studying additional reactions in organic chemistry and I am confused as to why ozone cleaves double bonds? I already know the mechanism of what happens but can anyone give a more conceptual understanding of why this occurs?

## closed as unclear what you're asking by Klaus-Dieter Warzecha, Jan, bon, Todd Minehardt, WildcatDec 9 '16 at 22:12

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• The mechanism actually tells you why this occurs. It's a step-by-step description. The overall reaction is favored. Each step is favored or provides easy access to a favored step. – Zhe Dec 8 '16 at 3:17
• Not all reactions are driven by... wait, I think I already said that. – Ivan Neretin Dec 8 '16 at 6:09

$$\small \begin{array}{lcc} \hline & \text{Bond Dissociation} & & \text{Bond Dissociation}\\ \text{Bond} & \text{Enthalpy}\ \mathrm{(kJ\ mol^{-1})} & \text{Bond} & \text{Enthalpy}\ \mathrm{(kJ\ mol^{-1})} \\ \hline \ce{C-C} & 347 &\ce{C=C} & 614\\ \ce{O-O} & 146 & \ce{O=O} & 495\\ \ce{C-O} & 358 & \ce{C=O} & 745^{[1]}\\ \hline \end{array}$$
$^{[1]}$Bond Dissociation Enthalpy Tables