Answer:
We can determine the rate of this reaction
as a function of initial concentrations either by keeping the concentration of
one of the reactants constant and changing the concentration of the other
reactant or by changing the concentration of both the reactants.
e.g., for the given reaction,
(i) Keeping [O2]
constant, if the concentration of NO is doubled, rate is found to become four
times. This shows that,
Rate
(ii) Keeping [NO] constant, if
the concentration of [O2] is doubled, rate is also found to become
double. This shows that,
Rate
Hence, overall rate law will be
Rate
Rate law expression -
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