Just as the depletion of stratospheric ozone today threatens life on Earth today, its accumulation was one of the crucial processes that allowed life to develop in prehistoric times.

3 O2 (g) ---> 2 O3 (g)

a. Express the rate of reaction in terms of the rate of disappearance of O2 and the rate of appearance of O3.
b. At a given instant, the rate of disappearance of O2 is 1.61 x10^-5 mol/Ls. What is the rate of appearance of O3?

The rate of reaction :

is the rate of appearance of an ozone.

Explanation:

The rate of the reaction is defined as change in in the concentration of any one of the reactants or products per unit time.

a) Rate of the reaction = R

Rate of the disappearance of the oxygen gas:

Rate of the appearance of the ozone gas:

b)Rate of the disappearance of the oxygen gas:

Rate of the appearance of the ozone gas:

is the rate of appearance of an ozone.

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