Power stations burn huge amounts of fossil fuels to make .............?
Electricity
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What do most fuels, such as crude oil and coal, contain?
Carbon and Hydrogen
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What is the process of burning fossil fuels?
During combustion, the carbon and hydrogen are oxidised so that carbon dioxide and water vapour are released into the atmosphere. Energy (heat) is also produced
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What is the word equation of the process of burning fossil fuels?
hydrocarbon + oxygen -----> carbon dioxide + water vapour
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What happens if the fuel contains sulfur impurities?
The sulfur will be released as sulfur dioxide when the fuel is burnt
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What will form if the fuel burns at a high temperature?
Oxides of nitrogen
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What is it called when there's a lot of oxygen?
All the fuel burns - this is called complete combustion
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What is it called if there's not enough oxygen?
Some of the fuel doesn't burn - this is called incomplete or partial combustion
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What does sulfur dioxide cause?
Acid rain
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What is the process of creating acid rain?
When the sulfur dioxide mixes with clouds it forms dilute sulfuric acid. This then falls as acid rain.
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What also causes acid rain?
Oxides of nitrogen cause acid rain by forming dilute acid in clouds
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What are the results of acid rain?
Acid rain causes lakes to become acidic, many plants and animals die, it kills trees and damages limestone buildings and ruins stone statues
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How can you reduce acid rain?
By reducing sulfur emissions
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What do power stations now have to take out the harmful gases before they release their fumes into the atmosphere?
Acid Gas Scrubbers
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What is the other way to reduce acid rain?
Reduce our usage of fossil fuels
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Other cards in this set
Card 2
Front
What do most fuels, such as crude oil and coal, contain?
Back
Carbon and Hydrogen
Card 3
Front
What is the process of burning fossil fuels?
Back
Card 4
Front
What is the word equation of the process of burning fossil fuels?
Back
Card 5
Front
What happens if the fuel contains sulfur impurities?
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