Concentration and Collisions

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Presentation transcript:

3.1.1. Concentration and Collisions 3.1 Collision Theory 3.1.1. Concentration and Collisions LO: I understand how the concentration affects the rate of a reaction.

(i) The particles collide with each other and Collision theory states that substances can only react with each other if: (i) The particles collide with each other and (ii) The collision has enough energy. The the concentration of acid, the the number of collisions. higher greater The the number of collisions the the rate of reaction. higher greater LO: I understand how the concentration affects the rate of a reaction.

3.1.2 Particle Size and Collisions LO: I understand how the particle size affects the rate of a reaction

Collisions can only take place on the of a solid. surface The smaller the particle size the the surface area. greater The greater the surface area the the number of collisions. greater LO: I understand how the particle size affects the rate of a reaction

3.1.3 Temperature and Collisions LO: I understand how the temperature affects the rate of a reaction.

Increasing the temperature makes the particles: move and collide more often faster collide with more . energy The greater the temperature the the rate of the reaction. greater In general, the rate doubles for every increase in temperature. 10˚C LO: I understand how the temperature affects the rate of a reaction