GCSE CHEMISTRY - Changing the Rate of a Chemical Reaction - Temperature - Concentration - Surface Area - Pressure - Catalyst

Rates of Reaction

Changing the Rate of a Reaction.

There are 5 ways to increase the rate of a chemical reaction.
They are all understood in terms of collision theory.

The rate of a chemical reaction may be increased by

1) Raising the temperature.

2) Increasing the concentration (in solution).

3) Increasing the pressure (in gases).

4) Increasing the surface area of a solid.

5) Use a catalyst.

The opposite of 1, 2, 3 and 4 will decrease the rate of a reaction.
A catalyst (strictly speaking) will change the rate of a reaction.
A catalyst can make a reaction go faster or slower.
In practice a catalyst is mainly used to make a reaction go faster.

Links Search Questions

gcsescience.com Contents The Periodic Table Index Quizzes gcsescience.com