C 1.4 Crude oil and fuels Flashcards
Where can you find crude oil?
You can find crude oil deep underneath the ground in lakes and pockets of caves
How is crude oil formed?
It is formed over millions of years from dead sea creatures that got trapped and crushed to form oil
What is crude oil used for?
It is used for many things, mostly for fuel for vehicles
How do you turn crude oil into products such as petrol and diesel?
The crude oil is heated to around 350 degrees celsius and separated into fractions using Fractional distillation.
What is crude oil?
Crude oil is a mixture of hydrocarbons that are found deep beneath the ground.
What does crude oil look like?
Crude oil is a thick (viscous) black liquid
If the molecules in a fraction are small, what does this mean?
If the molecules are small, the fraction will have a low boiling point, it would be very volatile, it will flow easily and it ignites easily
If the molecules in a fraction are large, what does this mean?
If the molecules are large, the fraction will have a high boiling point, it would not be very volatile, it will not flow easily and it would not ignite easily
What is a hydrocarbon?
A compound that contains only the elements hydrogen and carbon.
What is an alkane?
A saturated hydrocarbon that has the general formula CnH2n+2
What is produced when a hydrocarbon undergoes complete combustion?
Carbon dioxide and water
What environmental impact does carbon dioxide cause?
Global warming
What causes incomplete combustion?
Insufficient oxygen
What gases cause acid rain?
Sulfur dioxide and oxides of nitrogen.
What are the products of incomplete combustion?
Carbon or carbon monoxide and water.
