Collision theory
Lesson 3 / 11
Lesson video
The video is not available yet.
Lesson slides
not available yet
Lesson details
Lesson outcome
I can explain why increasing pressure, surface area or concentration increases the frequency of collisions between particles and therefore the rate of reaction.
Show transcript
Particles of reactants in a chemical reaction can react together if they collide with sufficient energy.
Increasing surface area of a solid lets more reacting particles in a solution collide with its particles each second.
Increasing concentration of a reacting solution introduces more reactant particles, so they collide more frequently.
Increasing temperature of reactants increases the speed of particles, so they collide more frequently.
Increasing pressure of reacting gases pushes reactant particles closer together, so they collide more frequently.
Worksheet
not available yet
Quizzes
This quiz is not available yet.
What pupils see
The same lesson as a pupil sees it. You can set any section as work on its own.
- IntroductionPrepare · Not available
- Starter quizActivate · Not available
- Lesson videoLearn · Not available
- Exit quizCheck · Not available
This content is by Cashar and published under an open licence.