Order of reaction is an experimentally determined
quantity. It may be zero, positive, negative and
fractional. The kinetic equation of nth order reaction is
k × t = 
Half life of nth order reaction depends on initial
concentration according to the following relation
t 1/2 ∝ 
Unit of the rate constant varies with the order but
general relation for unit of nth order reaction is
Unit of k = 
The differential rate law for nth order reaction may be given as : 
= k[A] n where, A denotes the reactant.
(i) The unit of rate and rate constant are same for a -
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
(i)
Sol. In zero order reaction r = k.
(ii)
Sol. x = kt ⇒ 
= k.t 1/2 or 
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