The reaction of ozone with oxygen atoms in the presence of chlorine atoms can occur by a two step process shown below : O3(g) + Cl${^ \bullet }$ (g) $ \to $ O2(g) + ClO${^ \bullet }$ (g) . . . . . .(i) ki = 5.2 × 109 L mol−1 s−1 ClO${^ \bullet }$(g) + O${^ \bullet }$(g) $ \to $ O2(g) + Cl${^ \bullet }$ (g) . . . . . . (ii) kii = 2.6 × 1010 L mol−1 s−1 The closest rate constant for the overall reaction O3(g) + O${^ \bullet }$ (g) $ \to $ 2 O2(g) is :

Question

The reaction of ozone with oxygen atoms in the presence of chlorine atoms can occur by a two step process shown below :

O₃(g) + Cl${^ \bullet }$ (g) $ \to $ O₂(g) + ClO${^ \bullet }$ (g) . . . . . .(i)

k_i = 5.2 × 10⁹ L mol⁻¹ s⁻¹

ClO${^ \bullet }$(g) + O${^ \bullet }$(g) $ \to $ O₂(g) + Cl${^ \bullet }$ (g) . . . . . . (ii)

k_ii = 2.6 × 10¹⁰ L mol⁻¹ s⁻¹

The closest rate constant for the overall reaction O₃(g) + O${^ \bullet }$ (g) $ \to $ 2 O₂(g) is :

5.2 × 10⁹ L mol⁻¹ s⁻¹

2.6 × 10¹⁰ L mol⁻¹ s⁻¹

3.1 × 10¹⁰ L mol⁻¹ s⁻¹

1.4 × 10²⁰ L mol⁻¹ s⁻¹

Solution

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