AP Chemistry · Unit 9: Thermodynamics and Electrochemistry
9.4 Thermodynamic and Kinetic Control
In short
Many processes that are thermodynamically favored do not occur to any measurable extent, or they occur at extremely slow rates. Processes that are thermodynamically favored, but do not proceed at a measurable rate, are under 'kinetic control.' High activation energy is a common reason for a process to be under kinetic control.
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What else do you need to know about Thermodynamic and Kinetic Control?
The fact that a process does not proceed at a noticeable rate does not mean that the chemical system is at equilibrium. If a process is known to be thermodynamically favored, and yet does not occur at a measurable rate, it is reasonable to conclude that the process is under kinetic control.
How is Thermodynamic and Kinetic Control tested on the exam?
You are expected to provide reasoning to justify a claim using connections between particulate and macroscopic scales or levels (Science Practice 6.E: Argumentation).
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Thermodynamic and Kinetic Control: common questions
What do you need to know about Thermodynamic and Kinetic Control for AP Chemistry?
Many processes that are thermodynamically favored do not occur to any measurable extent, or they occur at extremely slow rates. Processes that are thermodynamically favored, but do not proceed at a measurable rate, are under 'kinetic control.' High activation energy is a common reason for a process to be under kinetic control.
How is Thermodynamic and Kinetic Control tested on the AP Chemistry exam?
You are expected to provide reasoning to justify a claim using connections between particulate and macroscopic scales or levels (Science Practice 6.E: Argumentation).
Where does Thermodynamic and Kinetic Control fit in AP Chemistry?
Thermodynamic and Kinetic Control is topic 9.4 in Unit 9: Thermodynamics and Electrochemistry of AP Chemistry.
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