1. The rate constant of the following reaction
O3 + O → 2 O2
is given
by k=8.0×10-12 e(-2060/T),
where T is the temperature [K] and the unit
of k is
cm3 molecule-1 s-1. What
is the lifetime of O3 by the above reaction at the
altitude z=20 km, where T= 220 K and the oxygen atom
concentration [O] is [O]=1.8×107 atom
cm-3. Answer in sec to two significant digits.