Crude oil
What are fossil fules
Hydrocarbons
Define Crude Oil
a mixture of hydrocarbons
What are useful products called
Fractions
Give 6 examples of fractions from crude oil
Fuel oil, bitumen, refinery gas, petrol, kerosene and diesel
How are fractions distilled from crude oil
1.Crude oil is heated into a gas
2.Then fed into the fractioning columb which is cooler at the top
3.As the fractions reaches a temperature just below its boiling point it condenses and separates
Name the fractions of crude oil in order
Refinery gas
Gasoline
Kerosene
Diesel Oil
Fuel Oil
Bitumen
Does the change in colour get lighter or darker ans it goes down the list of fractions of crude oil
Darker
In which direction does the fractions of crude oil get darker
Down
Does the boiling point increase or decrease as the lost goes down
increase
In which direction does the boiling point increase in the fractions of crude oil
Down
Does the viscosity increase or decrease as the list goes down
Increase
Does combustibility increase or decrease as the lost goes up. Explain why
Increase. The shorter the chain length the more combusatble
Does volatility increase or decrease as the list goes up. Explain why
Increase. The boiling point decreases as the list goes up therefore the lower the boiling point the more volatile
Does the chain length increase or decrease as the lost goes down
increase
In which direction does chain length increase on the proprties of crude oil fractions
Up
Define the term volatility
How easily a substance turns into vapour
Define hydrocarbons
A substance that is only made of hydrogen and carbon