Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
Transcript of C1
What gases make up the air ?
How has the atmosphere changed
How are humans changing the air
and how does it effect our health ? Lesson 4
The burning reaction and the rearangement of atoms
in a reaction Lesson 5
Sources of pollutants
including burning sulfur Lesson 6 what happens to the pollutants in the air Lesson 7 How can we reduce powerstation emmissions and C02 emissions Lesson 8 Reducing vehicles emissions Hot, lots of CO2, water vapour.
CO2 decreased, O2 increased. Complete Combustion hydrocarbon + oxygen → carbon monoxide + carbon + water Incomplete Combustion Pollution from combustion 1.Carbon dioxide
2. Carbon monoxide
4. Sulphur dioxide
5. Nitrous oxides Carbon dioxide Carbon Monoxide Product of incomplete combustion Particulates By product of incomplete combustion Settle on buildings and in lungs Sulphur Dioxide formed when sulphur impurities in fuels are burnt causes acid rain can be reduced by using low sulphur fuel or by scrubbing exhaust gases Damages lakes, forests and buildings Nitrous Oxides (NOx) Caused when Nitrogen in air
combines with oxygen at
high temperatures Causes acid rain and breathing problems Solutions Hybrids - good in cities Electric cars
- short range
- charging up
- battery disposal NO + CO --> N2 + CO2 NO reduced to N2
CO oxidised to CO2 Catalysts speed up reactions