If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction? Check all that apply. • View Available Hint(s) All reactions that occur in one step are slow. The probability of an effective three-particle collision is low. The transition state is low in energy. The reaction requires the collision of three particles with the correct energy.
If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction? Check all that apply. • View Available Hint(s) All reactions that occur in one step are slow. The probability of an effective three-particle collision is low. The transition state is low in energy. The reaction requires the collision of three particles with the correct energy.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
Section: Chapter Questions
Problem 39QRT
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Transcribed Image Text:If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction?
Check all that apply.
• View Available Hint(s)
All reactions that occur in one step are slow.
The probability of an effective three-particle collision is low.
The transition state is low in energy.
The reaction requires the collision of three particles with the correct energy.
Transcribed Image Text:Metals often form several cations with different charges.
Cerium, for example, forms Ce3+ and Ce4+ ions, and
thallium forms Tlt and TI+ jons. Cerium and thallium
ions react as follows:
2Ce4+ (aq) + TI+ (aq)→2CE3+ (aq)+T³+ (aq)
This reaction is very slow and is thought to occur in a
single elementary step. The reaction is catalyzed by the
addition of Mn²+(aq) according to the following
mechanism:
Ce+ (aq) + Mn²+(aq) → Ce³+(aq) + Mn³+ (aq)
Ce+ (aq) + Mn³+(aq) → Ce³+(aq) + Mn+ (aq)
Mn1+ (aq) + TI+ (aq)
→ Mn2+ (aq) + Tl³+ (aq)
Expert Solution
Step 1
According to collision theory, the effective collisions are determined by activation energy and proper orientation.
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