Catalyst

Question 1

What does adding a catalyst do the rate of a reaction?

Answer 1

A catalyst can increase the rate of reaction. Using a catalyst correctly orientates molecules for reaction and it weakens existing bonds.

Question 2

Define catalyst.

Answer 2

A catalyst is a substance that increases the rate of the reaction but remains unchanged at the end of the reaction.

Question 3

How does a catalyst increase the rate of a reaction? (2)

Answer 3

• Using a catalyst correctly orientates molecules for reaction and it weakens existing bonds.
• The function of a catalyst is to provide an alternative path for the reaction, which has a lower activation energy. A lower activation energy means that a greater proportion of particles will have sufficient energy to react.