Assertion: ozone is thermodynamically stable with respect to oxygen
Reason: decomposition of ozone into oxygen results in the liberation of heat
Dear student,
Ozone is unstable as compared to dioxygen. So reactant is less stable than a product. Moreover, atomic oxygen has a strong tendency to combine and form dioxygen. So overall system get stability by decomposition of ozone and hence the reaction is exothermic.
The following reaction takes place:
2O3(g)3O2(g) + Heat H = -ve
Hence, the assertion is wrong but the reason is correct.
Therefore, the correct option is D.
Regards!
Ozone is unstable as compared to dioxygen. So reactant is less stable than a product. Moreover, atomic oxygen has a strong tendency to combine and form dioxygen. So overall system get stability by decomposition of ozone and hence the reaction is exothermic.
The following reaction takes place:
2O3(g)3O2(g) + Heat H = -ve
Hence, the assertion is wrong but the reason is correct.
Therefore, the correct option is D.
Regards!