(A) For a first-order reaction,the rate law is given by: $Rate = k[A]$.Given:Rate constant $(k) = 4 \times 10^{-3} \, s^{-1}$Concentration of reactant

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

$8 \times 10^{-5} \, M \, s^{-1}$

(A) For a first-order reaction,the rate law is given by: $Rate = k[A]$.Given:Rate constant $(k) = 4 \times 10^{-3} \, s^{-1}$Concentration of reactant $([A]) = 0.02 \, M = 2 \times 10^{-2} \, M$Substituting the values in the rate equation:$Rate = (4 \times 10^{-3} \, s^{-1}) \times (2 \times 10^{-2} \, M)$$Rate = 8 \times 10^{-5} \, M \, s^{-1}$

Class 12 Chemistry Chemical Kinetics First Order reaction

Easy

For a first-order reaction,the rate constant is $4 \times 10^{-3} \, s^{-1}$. If the concentration of the reactant is $0.02 \, M$,what will be the rate of the reaction?

A
$8 \times 10^{-5} \, M \, s^{-1}$
B
$4 \times 10^{-3} \, M \, s^{-1}$
C
$2 \times 10^{-2} \, M \, s^{-1}$
D
$4 \times 10^{-5} \, M \, s^{-1}$

Explore More

Browse All

Question Bank

All Subjects

Class 12 Questions

Class 12

Chemistry Questions

Chapter

Chemical Kinetics

Subtopic

First Order reaction

For the first order reaction $A \rightarrow B$,the half-life is $30 \ min$. The time taken for $75 \%$ completion of the reaction is $..... \ min$. (Nearest integer)
Given: $\log 2 = 0.3010, \log 3 = 0.4771, \log 5 = 0.6989$

DifficultJEE MAIN 2023

View Solution

In a first order reaction,the ratio $\frac{a}{a-x}$ was found to be $8$ after $10 \, \text{min}$. The rate constant is:

Medium

View Solution

The ratio of the time taken to complete $60\%$ and $20\%$ of a first-order reaction $[A \rightarrow \text{product}]$ is : $(\log 2 = 0.3)$

Medium

View Solution

The half-life of a first-order reaction is $20 \text{ min}$. What is the time taken to reduce the initial concentration of the reactant to $\frac{1}{10}$th of its original value (in $\text{ min}$)?

EasyMHT CET 2020

View Solution

For a first-order reaction $A \rightarrow B$,if the rate constant is $k$ and the initial concentration of reactant $A$ is $0.5 \ M$,what is its half-life period?

Medium

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

For a first-order reaction,the rate constant is $4 \times 10^{-3} \, s^{-1}$. If the concentration of the reactant is $0.02 \, M$,what will be the rate of the reaction?

Similar Questions

For the first order reaction $A \rightarrow B$,the half-life is $30 \ min$. The time taken for $75 \%$ completion of the reaction is $..... \ min$. (Nearest integer)Given: $\log 2 = 0.3010, \log 3 = 0.4771, \log 5 = 0.6989$

In a first order reaction,the ratio $\frac{a}{a-x}$ was found to be $8$ after $10 \, \text{min}$. The rate constant is:

The ratio of the time taken to complete $60\%$ and $20\%$ of a first-order reaction $[A \rightarrow \text{product}]$ is : $(\log 2 = 0.3)$

The half-life of a first-order reaction is $20 \text{ min}$. What is the time taken to reduce the initial concentration of the reactant to $\frac{1}{10}$th of its original value (in $\text{ min}$)?

For a first-order reaction $A \rightarrow B$,if the rate constant is $k$ and the initial concentration of reactant $A$ is $0.5 \ M$,what is its half-life period?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

For the first order reaction $A \rightarrow B$,the half-life is $30 \ min$. The time taken for $75 \%$ completion of the reaction is $..... \ min$. (Nearest integer)
Given: $\log 2 = 0.3010, \log 3 = 0.4771, \log 5 = 0.6989$