Hydrocarbons
What is a hydrocarbon?
Something that contains only carbon and hydrogen
Why is the crude oil heated?
To vaporise the molecules
What are petrol and diesel used for?
Car fuel
What does flammable mean
Easy to ignite
What is the chemical formula for methane?
CH4
Which part of the column is the hottest?
The bottom
Where does bitumen collect?
At the bottom
What does volatile mean?
How easily something evaporates
What does saturated mean?
Contains only single bonds
What is a fraction?
A simple mixture of a few similar hydrocarbons
What is bitumen used for?
Road surfaces
What does viscous mean?
What is the general formula for an alkane?
Cn H2n+2
Where do small molecules collect in the fractioning column?
At the top
What is kerosene used for?
Aircraft fuel
Where in the fractioning column will very volatile molecules form?
At the top
What is the test for an alkene?
Bromine water
Orange --> Colourless
What temperature is the oil heated to?
350oC
Which fraction collects at the top of the column?
Gas (for domestic gas heating and cooking)
Where in the fractioning column will very viscous fractions collect?
At the bottom