Rates of reaction, Temperature, Catalysts, Concentration, Pressure, GCSE Chemistry, Chemistry

1. Rate of
Reaction

2. Higher Concentration/Pressure
1. There is more reactive particles in the same
volume.
2. More successful collisions.
3. The rate of reaction increases.

3. Smaller Particle Size
1. The surface area is increased.
2. More particles come in contact with the
reactant.
3. More successful collisions.
4. The rate of reaction increases.

4. Higher Temperature
1. Particles move around more quickly.
2. Moe particles have the activation energy.
3. More successful collisions.
4. The rate of reaction increases.

5. Catalysts
• Different reactions need different catalysts.
• A catalyst reduces the activation energy
needed.
• More successful collisions.
• The rate of reaction increases.
• Catalysts help industry, by reducing costs.