In the atmosphere, under the effect of ultraviolet rays, oxygen molecules combine to form ozone molecules, and ozone molecules also photodissociate to form oxygen molecules. Which of the following would be observed if this reaction is in dynamic equilibrium?

At dynamic equilibrium, the forward reaction that forms ozone and the reverse reaction that breaks ozone down continue, but they occur at equal rates. Because the rates are equal, the concentrations of oxygen and ozone remain constant rather than increasing or decreasing. Therefore, the rates of the forward and reverse reactions remain the same.

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