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Chemistry · Chemical Kinetics

JEE Main 2025 — 3 April, Evening Shift — Question 8

Consider the following statements related to temperature dependence of rate constants. Identify the correct statements.

A. The Arrhenius equation holds true only for an elementary homogenous reaction.

B. The unit of AA is same as that of kk in Arrhenius equation.

C. At a given temperature, a low activation energy means a fast reaction.

D. A and Ea as used in Arrhenius equation depend on temperature.

E. When Ea >> RT, A and Ea become interdependent.

Choose the correct answer from the options given below.

  1. Option A:

    B and C only

    Correct
  2. Option B:

    B , D and E only

  3. Option C:

    A and B only

  4. Option D:

    A, C and D only

Answer: A

Step-by-step solution

k=Ae−EaRTk=A e^{-E_{a} R T}

If Ea↓:k↑E_{a} \downarrow: k \uparrow

k and A has same units.

Answer key and solution verified before publishing.

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Exam
JEE Main 2025
Paper
3 April, Evening Shift
Subject
Chemistry
Chapter
Chemical Kinetics
Topic
Arrhenius Equation
Consider the following statements related to temperature dependence… | JEE Main 2025 PYQ with Solution · DhiX AI