1.4 Crude oil Flashcards Preview

GCSE Chemistry 11L1 > 1.4 Crude oil > Flashcards

Flashcards in 1.4 Crude oil Deck (15)
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0

Crude oil is called a fossil fuel because...

Crude oil is called a fossil fuel because it is formed from the remains of ancient sea creatures.

1

Compared to large hydrocarbons, small hydrocarbons are:

More volatile

2

Is the top of an oil fractioning column warmer or colder than the bottom?

Colder

3

What happens to a liquid during its separation from a mixture by distillation?

Evaporation followed by condensation

4

What is the process to get the different fractions out of crude oil

Fractional distillation

5

Which fraction has the longest carbon chain

Bitumen

6

Where does crude oil come from?

Dead animals and plants compressed under the ocean

7

What is kerosene used for?

Aeroplane fuel

8

How do geologists find oil?

They study the rock structures

9

Which hydro carbons are less efficient?

Ones that have a longer chain

10

What process is used to convert long hydro carbon chains into shorter hydro carbon chains

Cracking

11

What is bitumen used for?

Tarmac

12

Which has a higher boiling point bitumen or bottled gas

Bitumen

13

What allows large hydrocarbons to be broken down into smaller hydrocarbons?

Cracking

14

What is the step of distillation

Heating