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.
gcsescience.com Contents The Periodic Table Index Quizzes gcsescience.com
Copyright © 2011 Dr. Colin France. All Rights Reserved.