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  • Explain why ozone is thermodynamically less stable than oxygen.

Explain why ozone is thermodynamically less stable than oxygen.

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Ozone is thermodynamically unstable with respect to oxygen because its decomposition results in liberation of heat \left ( \Delta H=-ve \right ) and increase in entropy \left ( \Delta H=+ve \right )

                                       2O_{3}\rightleftharpoons 3O_{2}

These 2 factors reinforce each other resulting in large negative Gibbs free energy change \left ( \Delta G=-ve \right ) for its conversion into oxygen.

 Therefore, the high concentration of ozone can result into dangerous explosion

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