5.13 I can describe catalytic cracking of long-chain hydrocarbons

1. Define the term Catalyst
A substance used to speed up the rate of reaction but never gets used up

2. Why is a Catalyst used?
To speed up the rate of reaction

3. Why are high temperatures needed?
because long chain hydrocarbons have high boiling points. (to break the bonds)





1. Why is it important to not get the liquid paraffin down to the side of the tube?