Question:
Identify the nature of the graph obtained when rate versus initial concentration is plotted for first order reaction.
Identify the nature of the graph obtained when rate versus initial concentration is plotted for first order reaction.
Show Hint
A first order rate law is linear in concentration, so the graph is a straight line through the origin with slope equal to the rate constant.
Updated On: Nov 12, 2026
- A straight line passing through the origine having -ve slope.
- A straight line parallel to X axis.
- A straight line passing through the origine having +ve slope.
- A straight line intercepting X and Y axes.
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
For a first order reaction, Rate \(=k[A]\).
Step 2: Compare with a straight line
This has the form \(y=mx\), with rate on the y-axis, \([A]\) on the x-axis and slope \(m=k\).
Since \(k>0\), the slope is positive and there is no intercept.
Step 3: Compare the options
A straight line through the origin with positive slope matches the third option.
Final Answer:
The graph is a straight line through the origin with positive slope. \[ \boxed{\text{(C) }\text{A straight line passing through the origin having +ve slope}} \]
For a first order reaction, Rate \(=k[A]\).
Step 2: Compare with a straight line
This has the form \(y=mx\), with rate on the y-axis, \([A]\) on the x-axis and slope \(m=k\).
Since \(k>0\), the slope is positive and there is no intercept.
Step 3: Compare the options
A straight line through the origin with positive slope matches the third option.
Final Answer:
The graph is a straight line through the origin with positive slope. \[ \boxed{\text{(C) }\text{A straight line passing through the origin having +ve slope}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Order of Reaction Questions
- The units of rate constant for first order reaction are
- Which of the following plots gives a straight line for a zero-order reaction?
- For a first-order reaction, the slope of the graph between \(\log[A]\) vs time is equal to:
- Which of the following equation exhibits integrated rate law equation for first order reaction?
- Which of the following equation exhibits integrated rate law equation for first order reaction?
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions