(B) The rate law for the reaction is given by: $\text{Rate} = k[A]^n$,where $n$ is the order of reaction.For the first condition: $2.4 = k(2.2)^n$ ...

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(B) The rate law for the reaction is given by: $\text{Rate} = k[A]^n$,where $n$ is the order of reaction.For the first condition: $2.4 = k(2.2)^n$ ... $(i)$For the second condition,$[A] = 2.2/2 = 1.1 \, mM$ and $\text{Rate} = 0.6 \, mM \, s^{-1}$:$0.6 = k(1.1)^n$ ... $(ii)$Dividing equation $(i)$ by equation $(ii)$:$\frac{2.4}{0.6} = \frac{k(2.2)^n}{k(1.1)^n}$$4 = (2)^n$$2^2 = 2^n$Therefore,$n = 2$.The order of reaction with respect to $A$ is $2$.

Class 12 Chemistry Chemical Kinetics Rate law , Rate constant , Order of Reaction and Molecularity

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For the reaction $A \to xP$,when $[A] = 2.2 \, mM$,the rate was found to be $2.4 \, mM \, s^{-1}$. On reducing the concentration of $A$ to half,the rate changes to $0.6 \, mM \, s^{-1}$. The order of reaction with respect to $A$ is

AIIMS 2005 All AIIMS

A
$1.5$
B
$2$
C
$2.5$
D
$3$

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Class 12

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Chemical Kinetics

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Rate law , Rate constant , Order of Reaction and Molecularity

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For the reaction $A \to xP$,when $[A] = 2.2 \, mM$,the rate was found to be $2.4 \, mM \, s^{-1}$. On reducing the concentration of $A$ to half,the rate changes to $0.6 \, mM \, s^{-1}$. The order of reaction with respect to $A$ is

Similar Questions

Differential form of the rate equation is $\frac{dx}{dt} = k[P][Q]^{0.5}[R]^{0.5}$. Which statement about the above equation is wrong?

The rate constant for the reaction $2N_2O_5 \to 4NO_2 + O_2$ is $3.0 \times 10^{-5} \, sec^{-1}$. If the rate is $2.40 \times 10^{-5} \, M \, sec^{-1}$,then the concentration of $N_2O_5$ (in $M$) is?

What is the order of a reaction which has a rate expression $\text{rate} = K[A]^{3/2}[B]^{-1}$?

For the reaction $2A + B \rightarrow A_2B$,if the concentration of reactant $A$ is doubled and the concentration of reactant $B$ is halved,the rate of the reaction will:

Which of the following statements regarding the molecularity of a reaction is wrong?

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