Is the synthesis of ozone, $\mathrm { O } _ { 3 }$ ,from oxygen, $\mathrm { O } _ { 2 }$ ,an example of an exothermic or endothermic reaction?
A)exothermic because ultraviolet light is emitted during its formation
B)endothermic because ultraviolet light is emitted during its formation
C)exothermic because ultraviolet light is absorbed during its formation
D)endothermic because ultraviolet light is absorbed during its formation

Question

Quizplus · Accepted Answer

The synthesis of ozone from oxygen is an endothermic process because it requires the absorption of ultraviolet light to break the oxygen ($\mathrm { O } _ { 2 }$) molecules into oxygen atoms, which then combine with other oxygen molecules to form ozone ($\mathrm { O } _ { 3 }$).

Is the Synthesis of Ozone O3\mathrm { O } _ { 3 }O3​

Is the Synthesis of Ozone $\mathrm { O } _ { 3 }$