Green Chemistry

Mind Map by noahsark275, updated more than 1 year ago
Created by noahsark275 almost 6 years ago


AS Chemistry Unit 2

Resource summary

Green Chemistry
1 processes in the chemical industry are being reinvented to make them more sustainable (‘greener’) by: •changing to renewable resources •finding alternatives to very hazardous chemicals •discovering catalysts for reactions with higher atom economies, eg the development of methods used to produce ethanoic acid based on catalysts of cobalt, rhodium and iridium •making more efficient use of energy, eg the use of microwave energy to heat reactions in the pharmaceutical industry •reducing waste and preventing pollution of the environment.
2 relative effects of different greenhouse gases as absorbers of IR and hence on global warming
3 difference between anthropogenic and natural climate change over the years
4 terms ‘carbon neutrality’ and ‘carbon footprint’
4.1 CARBON NEUTRALITY:having achieved a state in which the net amount of carbon dioxide or other carbon compounds emitted into the atmosphere is reduced to zero because it is balanced by actions to reduce these emissions. CARBON FOOTPRINT: the amount of carbon dioxide and other carbon compounds emitted due to the consumption of fossil fuels
5 apply the concept of carbon neutrality to different fuels, such as petrol, bio-ethanol and hydrogen
6 discuss and explain, including the mechanisms for the reactions, the science community’s reasons for recommending that CFCs are no longer used due to their damaging effect on the ozone layer.
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