The mechanism of the reaction A + 2B to D is2 | vedclass

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

Question

(A) The rate of a reaction is determined by the slowest step in the mechanism,which is called the rate-determining step.In the given mechanism:Step $1

Vedclass · Accepted Answer

$k[B]^2, 0, 2, 2$

Vedclass · Answer

(A) The rate of a reaction is determined by the slowest step in the mechanism,which is called the rate-determining step.In the given mechanism:Step $1$: $2B \xrightarrow{k} B_2$ $[Slow]$Step $2$: $B_2 + A 	o D$ $[Fast]$The rate law is determined by the slow step: $	ext{Rate} = k[B]^2$.Comparing this to the general rate law expression $	ext{Rate} = k[A]^x[B]^y$:Order with respect to $A$ $(x)$ = $0$.Order with respect to $B$ $(y)$ = $2$.Overall order of reaction = $x + y = 0 + 2 = 2$.Thus,the rate law expression is $k[B]^2$,order with respect to $A$ is $0$,order with respect to $B$ is $2$,and overall order is $2$.

The mechanism of the reaction $A + 2B \to D$ is
$2B \xrightarrow{k} B_2$ $[Slow]$
$B_2 + A \to D$ $[Fast]$
The rate law expression,order with respect to $A$,order with respect to $B$ and overall order of reaction are respectively

Similar Questions

Which of the following statements is correct?

$2 \ FeCl_3 + SnCl_2 \rightarrow 2 \ FeCl_2 + SnCl_4$. This reaction is an example of:

What is the time taken for the $3^{rd}$ half-life of a second-order decomposition reaction,given that its first half-life is $20 \ s$ (in $s$)?

If the concentration of a first-order reaction is increased by $x$ times,then the rate constant $(k)$ becomes

The possible mechanism for the reaction $2NO + Br_2 \to 2NOBr$ is:
$NO + Br_2 \rightleftharpoons NOBr_2$ (Fast)
$NOBr_2 + NO \to 2NOBr$ (Slow)
The rate law expression is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The mechanism of the reaction $A + 2B \to D$ is$2B \xrightarrow{k} B_2$ $[Slow]$$B_2 + A \to D$ $[Fast]$The rate law expression,order with respect to $A$,order with respect to $B$ and overall order of reaction are respectively