Q. For the reaction $A+B \rightarrow C+D$, it is found that doubling the concentration of $A$ increases rate 4 times and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction ?

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A

3

B

1

C

4

D

1.5

Solution:

Rate equation of the reaction becomes
$r=k[A]^{2}[B]$
so, order $=2 +1 =3$

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