For the reaction A + B `to` products , it is observed that : (i) On doubling the initial concentration of A only , the rate of reaction is also doubled and (ii) On doubling the intial concentration of both A and B , there is a change by a factor of 8 in the rate of the reaction The rate of this reaction is given byA. Rate = `k [A]^(2) [B]`B. Rate = ` k [A] [B]^(2)`C. Rate = k `[A]^(2) [B]^(2)`D. Rate = `k [A] [B]`

For the reaction A + B `to` products , it is observed that : (i) On do

1.	For the reaction A + B `to` products , it is observed that : (i) On doubling the initial concentration of A only , the rate of reaction is also doubled and (ii) On doubling the intial concentration of both A and B , there is a change by a factor of 8 in the rate of the reaction The rate of this reaction is given byA. Rate = `k [A]^(2) [B]`B. Rate = ` k [A] [B]^(2)`C. Rate = k `[A]^(2) [B]^(2)`D. Rate = `k [A] [B]`
Answer» Correct Answer - b When concentration A is doubled , rate is doubled . Hence order with respect to A is one. When concentration of both A and B are doubled , rate increased by 8 times hence total order is 3 . `therefore` Rate = k `[A]^(1) [B]^(2)` Order = 1 + 2 = 3 .

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