Consider the reaction,2A + B rightarrow produ | vedclass

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

Question

(B) For a reaction,the rate law can be expressed as $Rate = k[A]^x[B]^y$.$1$. When the concentration of $B$ is doubled,the half-life does not change.

Vedclass · Accepted Answer

$L \ mol^{-1} \ s^{-1}$

Vedclass · Answer

(B) For a reaction,the rate law can be expressed as $Rate = k[A]^x[B]^y$.$1$. When the concentration of $B$ is doubled,the half-life does not change. This indicates that the reaction is of first order with respect to $B$ $(y=1)$,as the half-life of a first-order reaction is independent of the initial concentration of the reactant.$2$. When the concentration of $A$ is doubled,the rate increases by two times. This indicates that the reaction is of first order with respect to $A$ $(x=1)$.$3$. The overall order of the reaction is $n = x + y = 1 + 1 = 2$.$4$. The unit of the rate constant for a reaction of order $n$ is $(mol \ L^{-1})^{1-n} \ s^{-1}$. For $n=2$,the unit is $(mol \ L^{-1})^{1-2} \ s^{-1} = (mol \ L^{-1})^{-1} \ s^{-1} = L \ mol^{-1} \ s^{-1}$.

$A / mol \ L^{-1}$	$0.20$	$0.20$	$0.40$
$B / mol \ L^{-1}$	$0.30$	$0.10$	$0.05$
$r_0 / mol \ L^{-1} \ s^{-1}$	$5.07 \times 10^{-5}$	$5.07 \times 10^{-5}$	$1.43 \times 10^{-4}$

Consider the reaction,$2A + B \rightarrow$ products. When concentration of $B$ alone was doubled,the half-life did not change. When the concentration of $A$ alone was doubled,the rate increased by two times. The unit of rate constant for this reaction is

Similar Questions

The hydrolysis of an organic chloride in the presence of a large excess of water is given by: $R-Cl + H_2O \rightarrow R-OH + HCl$. Which of the following options is correct?

For a chemical reaction $Y + 2Z \to$ Product,the rate-controlling step is $Y + \frac{1}{2}Z \to Q$. If the concentration of $Z$ is doubled,the rate of reaction will:

The reaction $2 A + B + C \longrightarrow D + E$ is found to be first order in $A$,second order in $B$,and zero order in $C$. What is the effect of increasing the concentration of all reactants twice?

Rate of reaction is given by the following rate law $-\frac{d[C]}{dt} = \frac{k_1 [C]}{1 + k_2 [C]}$. Determine the order of reaction when the concentration $[C]$ is very high.

Vedclass Test Series

Exam Paper Generator

Online Exam Module