Collision theory

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Last updated 7:55 AM on 10/14/26
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6 Terms

1
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For a reaction to occur…

Particles must collide

2
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Only successful collisions cause a reaction. Why?

particles need enough energy and the right orientation

3
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Higher temperature

particles move faster and have more kinetic energy.

Collisions happen more often, and a greater proportion have enough energy to react

4
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Higher concentration

more particles occupy the same volume, so collisions happen more frequently

5
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Greater surface area

more reactant particles are exposed, allowing more collisions with the other reactant per second

6
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Catalyst

lowers the activation energy, so more collisions have enough energy to be successful