4.5.1 - Crude Oil Flashcards
1
Q
What is crude oil made from!?
A
. A mixture of hydrocarbons
2
Q
What is a fraction of crude oil !?
A
. Each fraction is a mixture of similar hydrocarbons with similar boiling points
3
Q
What happens as the boiling point of a fraction of crude oil increases !?
A
. The fraction gets darker in colour
. The fractions get more viscous
4
Q
Table : (learn)
A
5
Q
What is fractional distillation!?
A
. Each of the fractions is separated from crude oil by fractional distillation.
(fractioning column is hotter at the bottom)
6
Q
What is step 1 of fractional distillation?!
A
- Heated crude oil vapours enter the column.
7
Q
What is step 2 of fractional distillation?!
A
- Vapours rise until they reach the boiling point, when they condense.
8
Q
What is step 3 of fractional distillation?!
A
- Different vapours condense a different heights due to the different boiling points.
9
Q
What is step 4 of fractional distillation?!
A
- Similar vapour condense together as a fraction.
