For a reaction,A + B rightarrow products,the | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Let the order of reaction with respect to $A$ and $B$ be $m$ and $n$ respectively.Then,$rate = k[A]^{m}[B]^{n}$From the table:$2 = k[0.2]^{m}[0.2]

Vedclass · Accepted Answer

$r=k[A]^{2}[B]$

Vedclass · Answer

(D) Let the order of reaction with respect to $A$ and $B$ be $m$ and $n$ respectively.Then,$rate = k[A]^{m}[B]^{n}$From the table:$2 = k[0.2]^{m}[0.2]^{n}$ $(i)$$4 = k[0.2]^{m}[0.4]^{n}$ $(ii)$$36 = k[0.6]^{m}[0.4]^{n}$ $(iii)$On comparing Eqs. $(i)$ and $(ii)$:$\frac{4}{2} = \frac{k[0.2]^{m}[0.4]^{n}}{k[0.2]^{m}[0.2]^{n}}$$2 = (\frac{0.4}{0.2})^{n} = 2^{n}$$n = 1$On comparing Eqs. $(ii)$ and $(iii)$:$\frac{36}{4} = \frac{k[0.6]^{m}[0.4]^{n}}{k[0.2]^{m}[0.4]^{n}}$$9 = (\frac{0.6}{0.2})^{m} = 3^{m}$$3^{2} = 3^{m}$$m = 2$Therefore,the rate law is $r = k[A]^{2}[B]$.

Expt. no.	$[A]$	$[B]$	Rate $(\text{mol} \ \text{dm}^{-3} \ \text{s}^{-1})$
$1$	$0.2$	$0.2$	$2$
$2$	$0.2$	$0.4$	$4$
$3$	$0.6$	$0.4$	$36$

For a reaction,$A + B \rightarrow$ products,the rate of the reaction at various concentrations is given below. The rate law for the above reaction is:
Expt. no. $[A]$ $[B]$ Rate $(\text{mol} \ \text{dm}^{-3} \ \text{s}^{-1})$
$1$ $0.2$ $0.2$ $2$
$2$ $0.2$ $0.4$ $4$
$3$ $0.6$ $0.4$ $36$

Similar Questions

For the reaction $A + B \to \text{products}$,it is found that the rate of the reaction is proportional to the concentration of $A$,but it is independent of the concentration of $B$. Then:

For the elementary reaction $M \rightarrow N$,the rate of disappearance of $M$ increases by a factor of $8$ upon doubling the concentration of $M$. The order of the reaction with respect to $M$ is :

In a reaction $A \rightarrow B$,if the concentration of reactant is increased by $9$ times,then the rate of reaction increases $3$ times. What is the order of reaction?

Inversion of cane sugar in dilute acid (conversion into glucose and fructose) is a:

The hydrolysis of an ester is catalyzed by dilute acids $A$ and $B$. The rate constants for the two processes are $K_A$ and $K_B$ respectively. If $K_A > K_B$,which of the following statements is correct?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

For a reaction,$A + B \rightarrow$ products,the rate of the reaction at various concentrations is given below. The rate law for the above reaction is:Expt. no.$[A]$$[B]$Rate $(\text{mol} \ \text{dm}^{-3} \ \text{s}^{-1})$$1$$0.2$$0.2$$2$$2$$0.2$$0.4$$4$$3$$0.6$$0.4$$36$