cracking Flashcards
1
Q
what does cracking do
A
splitting up long chains of hydrocarbons
2
Q
why do we do cracking
A
shorter chain hydrocarbons are more useful - they are flammable so make good fuels
produces alkenes which can be used to make polymers
3
Q
what are the two ways to crack
A
catalyitc cracking
steam cracking
4
Q
how to do catalytic cracking
A
pass over a hot catalyst
5
Q
how to do steam cracking
A
- vaporise hydrocarbon
- mix them with steam
- heat them to a very high temp
