Hydrocarbons: Fuel & Feedstock (AQA GCSE Chemistry Combined Science): Flashcards
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12 cards from this deck
What is crude oil?
What is crude oil?
Dark, thick liquid formed from ancient sea life
How did crude oil form?
How did crude oil form?
Dead plankton buried; heat & pressure over millions of years
What are hydrocarbons?
What are hydrocarbons?
Molecules made of hydrogen and carbon atoms
What is fractional distillation?
What is fractional distillation?
Process to separate crude oil into useful fractions
What is a fractionating column?
What is a fractionating column?
Tall tower where fractional distillation happens
Do smaller molecules have higher or lower boiling points?
Do smaller molecules have higher or lower boiling points?
Lower boiling points
Where do smaller molecules rise in the column?
Where do smaller molecules rise in the column?
Higher (they have lower boiling points)
What is petrol used for?
What is petrol used for?
Fuel for cars
What is kerosene used for?
What is kerosene used for?
Jet fuel
What does feedstock mean?
What does feedstock mean?
Starting materials for making products
What products are made from crude oil feedstock?
What products are made from crude oil feedstock?
Plastics, solvents, lubricants, detergents
Why is crude oil finite?
Why is crude oil finite?
Takes millions of years to form; once used up, it's gone forever