Crude oil

Question 1

what is crude oil?

Answer 1

a mixture of hydrocarbons, compounds of hydrogen and carbon only

Question 2

what is a fraction of crude oil?

Answer 2

a mixture of similar hydrocarbons with similar boiling points

Question 3

as the boiling point increases what happens to the fraction?

Answer 3

The fraction gets darker in colour
The fraction gets more viscous (like treacle)

Question 4

Refinery gases trates

Answer 4

Low B.P.
Low molecular mass
Light colour
Low viscosity

Question 5

Bitumen trates

Answer 5

High B.P
High molecular mass
Dark colour
High viscosity

Question 6

Refinery gases uses

Answer 6

Fuel for home cooking

Question 7

Gasoline uses

Answer 7

Fuel for cars

Question 8

Kerosene uses

Answer 8

Fuel for aircraft

Question 9

Diesel uses

Answer 9

Fuel for trains

Question 10

Fuel oil uses

Answer 10

Fuel for ships

Question 11

Bitumen uses

Answer 11

Making roads

Question 12

What happens in fractional distillation?

Answer 12

Each of the fractions are separated from crude oil

Question 13

How does fractional distillation work?

Answer 13

1. Heated crude oil vapours enter the column
2. Vapours rise until they reach their boiling point
3. Different vapours condense at different heights due to their different boiling points
4. Similar vapours condense together as a fraction