ASIDE: Chain Reactions - Verification of the rate law for the photochemical induced formation of HBr.
The mechanism for the photochemical induced formation of HBr is given by:
where
represents the rate
at which photons of the appropriate frequency are absorbed by the volume
in which the reaction occurs.
In this case, the steady-state equations are now given by:
and:
i.e. from (ii) + (i) we obtain:
i.e.:
which when substituted (i) we obtain:
i.e.:
i.e. the rate of formation of HBr in this case is given by:
i.e.:
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