Fractional Distillation of Crude Oil

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What is crude oil?
A mixture of many different compounds, mainly hydrocarbon molecules
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What are the properties of mixtures?
There are no chemical bonds between the different parts of a mixture, meaning the different hydrocarbons keep their original properties
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Describe the fractionating column
Machinery that works continuously and has a temperature gradient running through it - hottest at bottom and coldest at the top
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Briefly explain the process of fractional distillation
Crude oil is heated so that it vapourises and can be piped i at the bottom of the column. The gas rises and gradually cools. The compounds have different boiling points so they condense at different temperatures in the column
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How does the length of molecules relate to the boiling temperature?
The shorter the length of molecules, the smaller the boiling temperature
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Other cards in this set

Card 2

Front

What are the properties of mixtures?

Back

There are no chemical bonds between the different parts of a mixture, meaning the different hydrocarbons keep their original properties

Card 3

Front

Describe the fractionating column

Back

Preview of the front of card 3

Card 4

Front

Briefly explain the process of fractional distillation

Back

Preview of the front of card 4

Card 5

Front

How does the length of molecules relate to the boiling temperature?

Back

Preview of the front of card 5

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