Crude Oil

Question 0

What is the alkane formula

Answer 0

C(n)H(2n+2)

Question 1

What are hydrocarbons

Answer 1

Fuels such as petrol, made of only carbon and hydrogen. Methane, Ethane, Propane

Question 2

What is fractional distillation

Answer 2

When the fractional column works. The heated crude oil is piped in at the bottom. The oil evaporates and rises up the column. The temp decreases the higher up you get, so at different levels, depending on boiling and melting points, different substances are produced at different levels

Question 3

How do you make long-chain hydrocarbons into smaller ones

Answer 3

Cracking

Question 4

What is the process of cracking

Answer 4

1. Heat the long-chain hydrocarbon to turn it into a gas
2. Vapour is passed over a powdered catalyst at a temp of 400-700 C
3. The catalyst is aluminium oxide
4. The long-chain molecules crack on the surface of the catalyst

Question 5

Products of cracking

Answer 5

Mainly alkanes and unsaturated hydrocarbons make alkenes

Question 6

What is the Alkene formula

Answer 6

C(n)H(2n)