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Calculate the overall order of a reacti...

Calculate the overall order of a reaction which has the rate expression
a) Rate `=k [A] ^(1//2)[B]^(3//2)`
d) Rate ` =k[A] ^(3//2) [B]^(-1)`

Text Solution

Verified by Experts

(a Rate `=k [A]^(x)[B]^(y)`
order `=x+y`
So order `=1//2 +3//2 =2, i.e.,` second order
b) order `=3//2+(-1)=1//2 , i.e., ` half order.
A balanced chemical equation never gives us a ture pictur of how a reaction takes place since rerely a reaction gets completed in one step. The reactions taking place in one step are called elementary reactions. If a sequence of elementary reactions (called mechanism) reactants give in the probucts, the reaction are called complex reactions . These may be consective reactions (e.g., oxidation iof ethane to `CO_(2) and H_(2)O` passes through a series of intermediate steps in which alcohol, adehyde and acid are formed ), reversible reactions and parallel reactions (e.g., nitration of phenol yields o-nitrophenol and p-niteophoenol).
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