C1 - OCR Gateway B - Chemistry

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What sort of resource is a fossil fuel?
It is a non-renewable, finite resource.
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What is crude oil a mixture of?
Hydrocarbons.
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What oil is made at the bottom and at the top of a fractionating column?
Bitumen = bottom. LPG = top.
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Describe the process of fractional distillation.
Crude oil is heated at the bottom of the fractionating column. Liquid that doesn't boil sinks to the bottom. Other fractions boil and their gases rise up the column as it gets cooler towards the top. The lower the boiling point, the higher it rises.
4 of 5
uygy
jygoluy
5 of 5

Other cards in this set

Card 2

Front

What is crude oil a mixture of?

Back

Hydrocarbons.

Card 3

Front

What oil is made at the bottom and at the top of a fractionating column?

Back

Preview of the front of card 3

Card 4

Front

Describe the process of fractional distillation.

Back

Preview of the front of card 4

Card 5

Front

uygy

Back

Preview of the front of card 5

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