Question:
For a first-order reaction $A \rightarrow B$ the plot of $\log \left\{[A]_{t} / 1 M \right\}$ versus $t$ is linear with a
For a first-order reaction $A \rightarrow B$ the plot of $\log \left\{[A]_{t} / 1 M \right\}$ versus $t$ is linear with a
Updated On: Jul 2, 2022
- positive slope and zero intercept
- positive slope and non zero intercept
- negative slope and zero intercept
- negative slope and non zero intercept
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
For a first-order reaction, the rate expression is $\log \left\{[A]_{t} M\right\}-\log \left\{[A]_{0} M\right\}=-\{k t / 2.303\}$ Thus, the plot of $\log \left\{[A]_{t} / M \right\}$ versus $t$ is linear with a negative slope $\left(-\frac{k}{2.303}\right)$ and non zero intercept.
Was this answer helpful?
0
0
Top Questions on Order of Reaction
- A reaction is of second order with respect to a reactant. How is the rate of reaction affected if the concentration of the reactant is (i) doubled, (ii) reduced to half?
- CBSE CLASS XII - 2025
- Chemistry
- Order of Reaction
- For a first-order reaction, the concentration of a reactant decreases from 0.8 M to 0.4 M in 20 minutes. What is the half-life of the reaction? (Use $\ln 2 = 0.693$)
- AP EAPCET - 2025
- Chemistry
- Order of Reaction
The following data were obtained for the reaction: \[ 2NO(g) + O_2(g) \rightarrow 2N_2O(g) \] at different concentrations:
The rate law of this reaction is:- KEAM - 2025
- Chemistry
- Order of Reaction
- For a first-order reaction, the slope of the graph between \(\log[A]\) vs time is equal to:
- MHT CET - 2025
- Chemistry
- Order of Reaction
- Which of the following plots gives a straight line for a zero-order reaction?
- MHT CET - 2025
- Chemistry
- Order of Reaction
View More Questions
Questions Asked in AIIMS exam
What is the correct IUPAC name for the following compound?- AIIMS - 2024
- Organic Chemistry - Some Basic Principles and Techniques
What is the major product formed when phenol is treated with sodium dichromate (\( \text{Na}_2\text{Cr}_2\text{O}_7 \)) and sulfuric acid (\( \text{H}_2\text{SO}_4 \))?- AIIMS - 2024
- Organic Chemistry - Some Basic Principles and Techniques
- In a diffraction experiment, the fringe width $ \beta $ is 0.3 mm, the distance from the slit to the screen $ D $ is 5 cm, and the slit width $ d $ is 3 mm. What is the wavelength $ \lambda $?
What is the major product of the reaction?- AIIMS - 2024
- Organic Chemistry - Some Basic Principles and Techniques
- A solenoid has a radius of 10 cm, 200 turns per meter, and carries a current of 2 A. What is its inductance per unit length?
- AIIMS - 2024
- Solenoids and Toroids
View More Questions
Concepts Used:
Order of Reaction
The Order of reaction refers to the relationship between the rate of a chemical reaction and the concentration of the species taking part in it. In order to obtain the reaction order, the rate equation of the reaction will given in the question.
Characteristics of the reaction order
- Reaction order represents the number of species whose concentration directly affects the rate of reaction.
- It can be obtained by adding all the exponents of the concentration terms in the rate expression.
- The order of reaction does not depend on the stoichiometric coefficients corresponding to each species in the balanced reaction.
- The reaction order of a chemical reaction is always defined with the help of reactant concentrations and not with product concentrations.
- Integer or a fraction form the value of the order of reaction will be there and it can be zero.