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
For which order reaction,the unit of rate constant is $\text{time}^{-1}$?
If the rate constant of a first-order reaction is $0.6932 \ hr^{-1}$,then its half-life period is .......... $hr$.
Easy
View SolutionThe rate of a first-order reaction is $1.5 \times 10^{-2} \, mol \, L^{-1} \, min^{-1}$ when the concentration of the reactant is $0.5 \, M$. Find the half-life $(t_{1/2})$ of the reaction in $min$.
Easy
View Solution$A_{(g)} \rightarrow B_{(g)} + C_{(g)}$ is a first order reaction.
Time $t$ $\infty$ $P_{\text{system}}$ $P_t$ $P_{\infty}$
The reaction was started with reactant $A$ only. Which of the following expressions is correct for the rate constant $k$?
| Time | $t$ | $\infty$ |
| $P_{\text{system}}$ | $P_t$ | $P_{\infty}$ |
The reaction was started with reactant $A$ only. Which of the following expressions is correct for the rate constant $k$?
The slope of the graph between rate ($Y$-axis) and $[A]$ ($X$-axis) for a first-order reaction is equal to:
Vedclass 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