In a first-order reaction,the concentration of the reactant decreases from $1.0 \, M$ to $0.25 \, M$ in $20 \, \text{minutes}$. What will be the rate constant of the reaction?
- A$10 \, \text{min}^{-1}$
- B$6.931 \, \text{min}^{-1}$
- C$0.6931 \, \text{min}^{-1}$
- D$0.06931 \, \text{min}^{-1}$
Explore More
Similar Questions
If the half-life $(t_{1/2})$ for a first order reaction is $1 \text{ minute}$,then the time required for $99.9\%$ completion of the reaction is closest to
MediumNEET 2025
View SolutionWhat is the rate constant of a first-order reaction if $60 \%$ of the reactant decomposes in $45 \ minutes$?
The reaction $A \to P$ follows first order kinetics. The percentage of $A$ left after $3$ half-lives is
Medium
View SolutionThe rate constant and half-life of a first-order reaction are related to each other as -
For a first-order reaction,if $75\%$ of the reaction is completed in $15 \ min$,then the time required for $90\%$ completion of the reaction will be ........... $min$.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo