Is the synthesis of ozone, #O-3#, from oxygen, #O_2#, an example of an exothermic or endothermic reaction?
1 Answer
Aug 23, 2017
Explanation:
The reaction as written is ENDOTHERMIC, and it is accomplished in the upper atmosphere by the impact of photons on the dioxygen molecule, i.e.
The first reaction is bond-breaking, and is certainly endothermic, and the second reaction, bond-making, is exothermic. The balance is towards bond-breaking, i.e. the reaction as written in the intro is endothermic.
