AP Chemistry / Unit 5: Kinetics
5.5 Collision Model
Notes
Reactions happen when particles collide with enough energy (at least $E_a$) and the right orientation.
- Higher temperature increases the fraction of collisions above $E_a$.
Practice
Not every collision causes a reaction because:
Two requirements.
Raising the temperature increases the rate mainly by:
More effective collisions.
Increasing concentration increases rate because:
More particles per volume.
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