AP Chemistry 9.4: Kinetic Control
Practice AP Chemistry questions on explaining why a thermodynamically favorable reaction may require high temperature to occur at a measurable rate.
- Syllabus
- Effective Fall 2025
- Course
- AP Chemistry
Exam points
- Explain how activation energy slows favorable reactions until heating or a catalyst enables observable rates.
- Distinguish thermodynamic favorability from kinetic rate using ΔG°, activation energy, temperature, and catalysts.
9.4.A—Explain, in terms of kinetics, why a thermodynamically favored reaction might not occur at a measurable rate question 1
[Maximum number: 1]
Answer the following questions about the element Si and some of its compounds.
The reaction is thermodynamically favorable at all temperatures. Explain why the reaction occurs only at high temperatures.
For a correct explanation:
High temperature is required for the reactant particles to have sufficient thermal energy to overcome the activation energy of the reaction.
1 point
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