C1A - Making Crude Oil Useful Flashcards
What’s the name of the process which separates crude oil ?
Fraction Distillation
Why are fossil fuels un reliable ?
They take millions of years to be formed and are used up faster than they are formed
How does fractional distillation work ?
Because of the differences in boiling points
What are the environment problems with exploiting crude oil ?
1) oil slicks
2) damage to wildlife and beaches
What are the 3 things cracking does/requires ?
1) a catalyst
2) a high temperature
3) converts large hydrocarbons into smaller more useful ones
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
Where are the shortest chains in a fractioning column and why ?
At the top as it’s the coldest part
Which part of the fractioning column has the highest boiling points ?
The bottom
Where are the weakest intermolecular forces found ?
At the coldest part / at the top
What happens during boiling in a fractioning column ?
The intermolecular forces between molecules break but the covalent bonds do not
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
What is one aim of an oil refinery ?
To match its supply of useful products with the demand for them ?
How is the supply and demand issue tackled within an oil refinery ?
Cracking
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
During cracking what bonds are broken ?
Covalent
