C1A - Making Crude Oil Useful Flashcards Preview

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Flashcards in C1A - Making Crude Oil Useful Deck (15):
0

Why are fossil fuels un reliable ?

They take millions of years to be formed and are used up faster than they are formed

1

What's the name of the process which separates crude oil ?

Fraction Distillation

2

How does fractional distillation work ?

Because of the differences in boiling points

3

What are the environment problems with exploiting crude oil ?

1) oil slicks
2) damage to wildlife and beaches

4

What are the 3 things cracking does/requires ?

1) a catalyst
2) a high temperature
3) converts large hydrocarbons into smaller more useful ones

5

John owns a power station and wants to use crude oil to power it. Julie says this is a bad idea. What are two arguments she may have stated ?

1) finding replacements when it runs out
2) all readily extractable resources will be used up in the future

6

Where are the shortest chains in a fractioning column and why ?

At the top as it's the coldest part

7

Which part of the fractioning column has the highest boiling points ?

The bottom

8

Where are the weakest intermolecular forces found ?

At the coldest part / at the top

9

What happens during boiling in a fractioning column ?

The intermolecular forces between molecules break but the covalent bonds do not

10

Political problems associated with extracting crude oil are ?

1) The uk is dependent on oil and gas from politically/economically unstable countries
2) future supply issues

11

What is one aim of an oil refinery ?

To match its supply of useful products with the demand for them ?

12

How is the supply and demand issue tackled within an oil refinery ?

Cracking

13

Julie is trying to experiment the process of cracking but it's not working. She has a catalyst and a low temperature. Why isn't it working ?

She needs a high temperature

14

During cracking what bonds are broken ?

Covalent