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4.9     A reaction is first order in A and second order in B.

           (iii) How is the rate affected when the concentrations of both A and B are doubled?

If the concentration of [A] and[B] is increased by 2 times, then                 Therefore, the rate of reaction will increase 8 times.

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4.9    A reaction is first order in A and second order in B.

          (ii) How is the rate affected on increasing the concentration of B three times?

If the concentration of [B] is increased by 3 times, then                 Therefore, the rate of reaction will increase 9 times.

4.9     A reaction is first order in A and second order in B.

(i)Write the differential rate equation.

the reaction is first order in A and second order in B. it means the power of A is one and power of B is 2 The differential rate equation will be-
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