Question

For the reaction; $3O_2⟶2O_3;\Delta H=+ve$. We can say that:

• A. ozone is more stable than oxygen
• B. ozone is less stable than oxygen and ozone decomposes forming oxygen readily
• C. oxygen is less stable than ozone and oxygen readily forms ozone
• D. none of the above

Answer 1

Answer: (B)

ozone is less stable than oxygen and ozone decomposes forming oxygen readily

For the reaction; $3O_2⟶2O_3;\Delta H$ is positive.

Thus, the forward reaction is endothermic and the reverse reaction is exothermic.

Hence, $O_3$ possess more energy than $O_2$.

We can say that ozone is less stable than oxygen and ozone decomposes forming oxygen readily.