For the reaction 2A + B rightarrow C,the rate | vedclass

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

Question

(D) The given rate law is $	ext{Rate} = k[A]^1[B]^1$. The overall order of the reaction is $1 + 1 = 2$. For a second-order reaction,the half-life is

Vedclass · Accepted Answer

The value of $k$ is independent of the initial concentrations of $A$ and $B$.

Vedclass · Answer

(D) The given rate law is $	ext{Rate} = k[A]^1[B]^1$. The overall order of the reaction is $1 + 1 = 2$. For a second-order reaction,the half-life is inversely proportional to the initial concentration,so it is not constant. The unit of the rate constant $k$ for a second-order reaction is $L \ mol^{-1} \ s^{-1}$. The rate constant $k$ is a characteristic property of a reaction at a given temperature and is independent of the initial concentrations of the reactants. Therefore,statement $D$ is correct.

$Exp.$	$[A] \ (mol \ L^{-1})$	$[B] \ (mol \ L^{-1})$	Initial rate $(mol \ L^{-1} \ s^{-1})$
$1$	$2.5 \times 10^{-4}$	$3 \times 10^{-5}$	$5 \times 10^{-4}$
$2$	$5 \times 10^{-4}$	$6 \times 10^{-5}$	$4 \times 10^{-3}$
$3$	$1 \times 10^{-3}$	$6 \times 10^{-5}$	$1.6 \times 10^{-2}$

For the reaction $2A + B \rightarrow C$,the rate law is given by $\text{Rate} = k[A][B]$. Which of the following statements is correct for this reaction?

Similar Questions

For a reaction,$A + B \longrightarrow \text{product}$,it is found that the rate law is $r = k[A]^{1.5}[B]^{2.5}$. What is the order of reaction?

Which of the following for a chemical reaction can never be a fraction?

For the reaction $A + 2B \rightleftharpoons 2C + D$,if the concentration of $A$ is increased four times and the concentration of $B$ is reduced to half,the rate of the reaction will be:

The rate of the simple reaction,$2NO + O_2 \to 2NO_2$,when the volume of the reaction vessel is doubled:

Vedclass Test Series

Exam Paper Generator

Online Exam Module