Factors Affecting Rates of Reaction
- Created by: geeg29
- Created on: 24-09-18 17:55
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- Factors Affecting Rates of Reaction
- The more collisions in a reaction, the higher the rate of reaction
- Temperature
- The higher the temperatre, the faster the particles move
- Particles collide more frequently
- More energy for collisions to happen
- The higher the temperatre, the faster the particles move
- Concentration/pressure
- Higher concentration= more particles in the same amount of water
- Collisions are more frequent
- Higher pressure of gas= higher number of particles in the same space
- Collisions are more frequent
- Higher concentration= more particles in the same amount of water
- Using a catalyst
- A catalyst is a substance that speends up a reaction
- Not used in the reaction itself
- Isn't part of the overall equation
- Different catalysts are needed for different reactions but they work in the same way
- Works by decreasing the activation energy needed for the reaction to occur
- Provides an alternative pathway with a lower activation energy
- A catalyst is a substance that speends up a reaction
- Surface area
- If a reactant is a solid, you can break it down to increase the surface area to volume ratio
- Particles around the reactant will have more area to work on
- More frequent collisions
- If a reactant is a solid, you can break it down to increase the surface area to volume ratio
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