Chemistry C1

air quality mind map

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  • Module C1 Air Quality
    • The evolution of the atmosphere
      • PHASE 1: VOLCANO
        • gave out gases like;
          • Water vapour
            • Oceans formed when water vapour condensed
          • Carbon Dioxide
            • Which formed the atmosphere
              • Water vapour
                • Oceans formed when water vapour condensed
              • Nitrogen
          • Nitrogen
      • PHASE 2: GREEN PLANTES
        • Plants evolved over most of the earth
          • Taking in carbon dioxide and emitting oxygen
            • Via photosynth-esis
          • When they died the carbon they absorbed was trapped in rocks
            • Creating fossil fuels
    • The atmosphere today
      • 78% nitrogen
      • 21% oxygen
      • 1% argon
      • small amounts of other gases
      • Human activity adds pollutants to the air
        • carbon dioxide
          • Carbon monoxide
            • particulates
              • sulphur dioxide
                • nitrogen oxides
                  • Can be directly hazardous to humans
                    • sulphur dioxide
                      • nitrogen oxides
                        • Can be directly hazardous to humans
                          • particulates
                            • Carbon monoxide
                              • carbon dioxide
                                • Climate change
                              • Or damage the environment
                            • nitrogen monoxide
                              • happens in high temps
                              • can continue to make nitrogen dioxide
                                • acts similarly to sulphur dioxide
                                  • nitrogen monoxide
                                    • happens in high temps
                                    • can continue to make nitrogen dioxide
                                      • acts similarly to sulphur dioxide
                            • Acid Rain
                          • Or damage the environment
                      • Acid Rain
                • Climate change
          • Air Pollution
            • Fossil fuels
              • Coal
              • Oil
                • CARBON
                  • Coal
                  • Gas
                  • carbon dioxide - greenhouse effect
                  • carbon monoxide - poisonous
                  • particulates - soot
              • Gas
              • hydrocarbon - except coal
              • burning fuel = oxidation
          • Chemical Reactions
            • all substances are made from atoms
              • when these are joined together they make molecules
            • happen when atoms are rearranged
              • Reactants
                • rearrange themselves into
                  • Products
              • No mass is lost
          • Reducing Pollution
            • cars
              • catalytic converters
                • reduction (nitrogen monoxide)
                • oxidation (carbon monoxide)
              • biofuels and electric cars
            • Power stations
              • removing sulphur dioxide from flue gases
                • seawater
                  • dissolves
                    • produces carbon dioxide, water and dissolved sulfate
                • an alkaline slurry
                  • calcium oxide reacts with it to produce a solid waste product
                    • calcium sulfite
        • PHASE 2: GREEN PLANTES
          • Plants evolved over most of the earth
            • Taking in carbon dioxide and emitting oxygen
              • Via photosynth-esis
            • When they died the carbon they absorbed was trapped in rocks
              • Creating fossil fuels

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