Collision Theory Flashcards

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Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What does collision theory say must happen for a reaction to occur?

Particles must collide with each other.

In collision theory, what is a 'successful collision'?

It is a collision that causes a chemical reaction to happen.

What two things do particles need for a collision to be successful?

They need enough energy and the correct arrangement when they hit.

What is activation energy in collision theory?

It is the minimum energy particles need for a successful collision.

How is the rate of reaction linked to successful collisions?

A faster reaction has more successful collisions each second.

Why do many collisions not lead to a reaction?

The particles do not have enough energy or are not lined up correctly.

In collision theory, what does 'frequency of collisions' mean?

It means how often particles collide in a given time.

If the frequency of successful collisions increases, what happens to the reaction rate?

The reaction rate increases.

According to collision theory, why do reactions eventually stop?

The reactants are used up, so there are no more successful collisions.

How does collision theory explain a slow reaction?

There are only a few successful collisions each second.