Crude oil and fuels

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Why is crude oil separated into fractions?
To make useful fuels
1 of 9
Name the products when ethane, C2H6, burns completely
Carbon dioxide and water
2 of 9
Give three reasons why fractions with lower boiling points are more useful as fuels
They burn more easily, they have runny liquids and they burn with little smoke
3 of 9
Name two fuels that can be made from renewable sources
Biodiesel and ethanol
4 of 9
Some exhaust fumes contain particulates. What are particulates and how are the produced?
Particulates is soot and unburnt hydrocarbons which is produced by incomplete combustion
5 of 9
Explain why burning some fuels produces sulfur dioxide
Fuels containing sulfur compunds oxidise when they burn producing sulfur dioxide
6 of 9
Propane, C3H8, is used as a fuel for cookers. Explain why propane should always be burned in a plentiful supply of air.
Carbon monoxide may be produced in a limited supply of air
7 of 9
Why are some scientists concerned about the carbon dioxide produced by burning fossil fuels?
It increases carbon dioxide, which is a greenhouse gas, in the atmosphere which can cause global warming
8 of 9
Explain what happens in a fractional distillation column used to seperate crude oil
Crude oil vapour enters the column, the vapour rises until the boiling point of the compound is reached. The compound condenses at that level and the liquid is collected at the bottom of the coloumn. Low boiling fractions are collected at the top
9 of 9

Other cards in this set

Card 2

Front

Name the products when ethane, C2H6, burns completely

Back

Carbon dioxide and water

Card 3

Front

Give three reasons why fractions with lower boiling points are more useful as fuels

Back

Preview of the front of card 3

Card 4

Front

Name two fuels that can be made from renewable sources

Back

Preview of the front of card 4

Card 5

Front

Some exhaust fumes contain particulates. What are particulates and how are the produced?

Back

Preview of the front of card 5
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