Chemistry · Chemical Kinetics
For a reaction mechanism involving an intermediate: A + B ⇌ I (with forward rate constant k a and backward rate constant k a ') followed by I → P (with rate constant k b ), if the potential energy versus reaction coordinate plot shows activation energies E a for the first step, E a ' for the reverse of the first step, and E b for the second step, the effective activation energy for the overall reaction is given by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1E a + E a ' - E b
- 2-E a + E a ' - E b
- 3E a + E b - E a '✓
- 4E a - E a ' - E b
Correct answer
E a + E b - E a '
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