Question

Ozone, O3(g), is a form of elemental oxygen that is important in the absorption of ultraviolet radiation in the stratosphere. It decomposes to O2(g) at room temperature and pressure according to the following reaction:
2O3(g)→3O2(g)ΔH=−284.6kJ

Answer 1

This is a very interesting tidbit of information but I don't see a question.