Which of the following statements is correct | vedclass

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(B) The formation of ozone from oxygen is represented by the reaction: $3O_2(g) \rightarrow 2O_3(g)$.This reaction is endothermic,meaning the enthalpy

Vedclass · Accepted Answer

The enthalpy change during the formation of $O_3$ from $O_2$ is positive

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(B) The formation of ozone from oxygen is represented by the reaction: $3O_2(g) \rightarrow 2O_3(g)$.This reaction is endothermic,meaning the enthalpy change $(\Delta H)$ is positive $(+142 \ kJ \ mol^{-1})$.Since the number of moles of gas decreases from $3$ to $2$,the entropy change $(\Delta S)$ is negative.$O_2$ is more stable than $O_3$ because $O_3$ is an endothermic compound.$O_2$ is paramagnetic due to the presence of two unpaired electrons in its antibonding molecular orbitals,whereas $O_3$ is diamagnetic.

Which of the following statements is correct about $O_2$ and $O_3$ molecules?

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