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Collision Model

Definition

The collision model is a theory that states chemical reactions occur when reactant molecules collide with the proper orientation and sufficient energy.

Analogy

Think of the collision model like a game of pool. Just as you need to hit the balls at the right angle and with enough force for them to go into the pockets, molecules must collide in a specific way and with enough energy for a reaction to occur.

Related terms

Activation Energy: This is the minimum amount of energy required for a chemical reaction to occur. It's like needing a certain amount of strength to make an effective shot in pool.

Reaction Rate: This refers to how quickly or slowly reactants turn into products in a chemical reaction. In our pool game analogy, it's similar to how fast or slow players can sink all their balls into pockets.

Orientation Factor: This is about how molecules must be oriented during collisions for reactions to happen. Like in pool, where hitting balls from different angles will lead them towards different directions.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.