The experimental data for the reaction 2A + B | vedclass

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

Question

(A) Let the rate law be $Rate = k [A]^x [B_2]^y$. From experiment $(1)$ and $(2)$,$[A]_0$ is constant $(0.50 \ M)$ and $[B_2]_0$ is doubled ($0.50 \ M

Vedclass · Accepted Answer

$Rate = k [B_2]$

Vedclass · Answer

(A) Let the rate law be $Rate = k [A]^x [B_2]^y$. From experiment $(1)$ and $(2)$,$[A]_0$ is constant $(0.50 \ M)$ and $[B_2]_0$ is doubled ($0.50 \ M$ to $1.00 \ M$). The rate increases from $1.6 	imes 10^{-4}$ to $3.2 	imes 10^{-4}$ (doubled). Therefore,$2^y = 2$,which implies $y = 1$. From experiment $(2)$ and $(3)$,$[B_2]_0$ is constant $(1.00 \ M)$ and $[A]_0$ is doubled ($0.50 \ M$ to $1.00 \ M$). The rate remains $3.2 	imes 10^{-4}$ (no change). Therefore,$2^x = 1$,which implies $x = 0$. Substituting the values of $x$ and $y$ into the rate law,we get $Rate = k [A]^0 [B_2]^1 = k [B_2]$.

$Exp.$	$[A]_0$	$[B_2]_0$	$Rate \ (mol \ L^{-1} \ s^{-1})$
$(1)$	$0.50$	$0.50$	$1.6 \times 10^{-4}$
$(2)$	$0.50$	$1.00$	$3.2 \times 10^{-4}$
$(3)$	$1.00$	$1.00$	$3.2 \times 10^{-4}$

Similar Questions

The half-life of decomposition of gaseous $CH_3CHO$ at initial pressure of $364 \ mm$ and $182 \ mm$ of $Hg$ were $440 \ sec$ and $880 \ sec$ respectively. The order of the reaction is

The unit of rate constant $K$ for a third-order reaction is . . . . . . .

An elementary reaction between $A$ and $B$ is a second order reaction. Which of the following rate equations must be correct?

$A$ reaction $2NO + 2H_2 \longrightarrow N_2 + 2H_2O$ has the following mechanism:
Step-$I$: $2NO \longrightarrow N_2O_2$
Step-$II$: $N_2O_2 + H_2 \longrightarrow N_2O + H_2O$
Step-$III$: $N_2O + H_2 \longrightarrow N_2 + H_2O$
Which of the following substances is a reaction intermediate?

For a second-order reaction,the rate constant is $8 \times 10^{-5} \, M^{-1} \, \text{min}^{-1}$. In how much time will a $1 \, M$ solution decrease to $0.5 \, M$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module