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Question: Answered & Verified by Expert
Consider the following plots of rate constant versus 1T for four different reactions. which of the following orders is correct for the activation energies of these reactions?

ChemistryChemical KineticsJEE Main
Options:
  • A Ec>Ea>Ed>Eb
  • B Eb>Ea>Ed>Ec
  • C Ea>Ec>Ed>Eb
  • D Eb>Ed>Ec>Ea
Solution:
2128 Upvotes Verified Answer
The correct answer is: Ec>Ea>Ed>Eb
As we know that Arhenious equation is given as
K=Ae-EaRT
logK=logA-Ea2.303 RT
Slope=-Ea2.303 RT
Slope c>a>d>b.
Ec>Ea>Ed>Eb

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