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 = -284.6 kJ
(a) What is the enthalpy change for this reaction per mole of O3(g)?
(b) Which has the higher enthalpy under these conditions, 2 O3(g) or 3 O2(g)?