8. Fuels and Fractions Flashcards
What are the 3 sides of the fire triangle?
What is a fuel?
A substance that burns to release energy
What is meant by a fossil fuel?
A fuel formed from once living organisms
Name the 3 main fossil fuels
Crude oil
Natural Gas
Coal
What are the 2 main problems with fossil fuels?
- Pollution
- They are finite
What does “finite” mean?
They will eventually run out
Limited supply
What conditions are needed for fossil fuels to form?
Dead organisms
High Pressure
High Temperature
Millions of years
What are the main substances in crude oil?
Hydrocarbons
What is meant by a hydrocarbon?
What is meant by a fraction?
A group of substances with silmilar boiling points
Why do some hydrocarbons have higher boiling points than others?
Larger molecules have larger attractions between them and need more energy to break them
How do the properties of crude oil fractions differ?
What are some common uses of crude oil fractions?
