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25 Cards in this Set
- Front
- Back
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Source of Carbon Monoxide |
Incomplete combustion of fuels in motor engines |
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Effect of Carbon Monoxide |
Combines with haemoglobin to form carboxyhaemoglobin which reduces the ability of oxygen gas to be transported to the rest of the body. Causes respiratory difficulties |
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Methods of reducing Carbon Monoxide |
1) Fit catalytic converters in vehicles to convert CO to CO2 2) Use lean burn engine that has high air:fuel ratio |
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Name the natural Source of Oxides of nitrogen |
Lightning |
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Name the man-made source of Oxides of nitrogen |
Formed at high temp in car engines and factories |
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Effect of Oxides of nitrogen |
Irritation of the eyes and lungs and causes breathing difficulties. NO is oxidised to NO2, which dissolves in water to form acid rain |
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What does acid rain do? |
It corrodes limestone buildings and damages crops and aquatic life. |
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Natural cause of sulfur dioxide? |
Volcanic eruptions |
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Man-made cause of sulfur dioxide? |
Burning of sulfur-containing fuels |
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Effects of sulfur dioxide? |
Irritation of the eyes and lungs and causes breathing difficulties. This dissolves in water to form acid rain |
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Method of reducing sulfur dioxide? |
Removed by adding limestone to form Calcium Sulfite which oxidises to form calcium sulfate (Flue Gas Desulfurisation) |
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Source of ozone? |
Forned from the reaction between NO2 and unburnt hydrocarbons in the presence of sunlight |
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Effect of ozone? |
Contributes to photochemical smog (haze) which irritates the eyes and lungs. Damages crops. |
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Full name of CFCs? |
Chloroflurocarbons |
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Source of CFCs? |
Present in propellant in aerosols and coolants in refrigerators and air conditioners |
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Effect of CFCs? |
React with ozone in the stratosphere and cause a hole in the ozone layer, allowing harmful UV rays to enter the Earth |
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Health effects of UV rays? |
Could cause skin cancer and eye damage |
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Source of methane? |
Natural: Decay of plant and animal matter |
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How to reduce presence of CFCs? |
Reduce the use of propellants in aerosols and coolants in refrigerators or air conditioners. |
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Effects of methane? |
Is a greenhouse gas that contributes to global warming |
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What does global warming then cause? |
Flooding in low-lying areas due to the melting of ice caps. |
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Source of unburnt hydrocarbons? |
Released in chemical plants |
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Effects of unburnt hydrocarbons? |
Carcinogenic (cancer-causing) and reacts with oxides of nitrogen to contribute to forming of photochemical smog, haze. |
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How to reduce presence of unburnt hydrocarbons? |
Use a high air:fuel ratio |
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What are the waste gases from the blast furnace when getting molten iron from its ore? |
Carbon monoxide, carbon dioxide |
