Question

1. When ozone absorbs ultraviolet light, it forms molecular oxygen. 203(g) + 302(g This reaction is believed to go by this simple mechanism: (1) 03(g) = 02(g) + 0(g) (2) 0(g) + 03 (g) → 202(g) Q3! containing only reactant and/or product (a) Using the steady-state approximation, determine an expression for concentrations (i.e. things that appear in the net reaction). (b) In the upper atmosphere, [03] is typically quite small compared to [02], which remains essentially constant since it is in such excess. Assuming (03] < (02), show how the rate law you obtained in (a) can be reduced to a simpler law that is second order in [03].

Answer 1

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