Chlorine atoms catalyze ozone depletion in the stratosphere. One key elementary step in the catalytic cycle is the reaction
Cl(g) + O₃(g) → ClO(g) + O₂(g)
Assume this step occurs in isolation in a reaction chamber that initially contains measurable concentrations of Cl and O₃.
(a) Write a rate law for the formation of ClO based on the stoichiometry of the elementary step.
(b) Express the rate of disappearance of O₃ in differential form.
(c) If the concentration of atomic chlorine is doubled while [O₃] is held constant, by what factor does the initial rate of ClO formation change? Justify your answer quantitatively.
(d) Classify the molecularity of this reaction and comment on the likelihood of such processes compared with termolecular collisions.