Chapter 17 - the atmosphere and environment Flashcards
what is the percentage of nitrogen in air
78%
where to get nitrogen from
Fractional distillation of liquid air
what are the uses of nitrogen
Make ammonia
Preserve food
what is percentage of oxygen in air
21%
where to get oxygen from
Fractional distillation of liquid air
Decomposition of hydrogen peroxide
what are the uses of oxygen
Breathing/ oxygen tanks, combustion of things, welding/ making steel
what are the percentage of other gases (mainly argon) in the air
1%
where to get other gases (mainly argon) from
Fractional distillation of liquid air
what are the uses of other gases (mainly argon)
Welding/ making steel, fill light bulbs, provide an inert atmosphere to prevent oxidation of steel
what is the percentage of carbon dioxide in the air
0.03%
where to get carbon dioxide from
Decomposition of metal carbonates and combustion of fuels
what is the uses of carbon dioxide
Photosynthesis and fill fire extinguishers
what is the acronym to remember the pollutant gases
cant stop oxidising me and u
what are the pollutants
Carbon monoxide
sulfur dioxide
oxides of nitrogen
methane
unburnt hydrocarbons
man made sources of Carbon monoxide
-incomplete combustion of petrol in car engines
-incomplete combustion of fossil fuels
natural sources of Carbon monoxide
- forest fires
effects on human health due to Carbon monoxide
-is a colourless and poisonous gas that reacts with haemoglobin in blood to form carboxyhaemoglobins that prevent transportation of oxygen around the body causing death by suffocation
reduce the effects of Carbon monoxide
Ensure combustion of fuels and fossils fuels in complete
Fix catalytic converters in cars to oxidase the carbon monoxide to carbon dioxide
man made sources of sulfur dioxide
Combustion of fuels containing soulful like coal in factories
natural sources of sulfur dioxide
-volcanic eruptions
effects on environment due to sulfur dioxide
Forms acid rain that corrodes buildings and affects aquatic life and plants.
effects on human health due to sulfur dioxide
Irritates eyes and causes breathing problems
reduce the effects of sulfur dioxide
Burn less fuels with suffuse like coal
manmade sources of oxides of nitrogen
Combustion of fuels in cars at high temperature
natural sources of oxides of nitrogen
Lightning activity
effects on environment due to oxides of nitrogen
Forms acids rain that corrodes buildings and harms plants and aquatic life
effects on human health due to oxides of nitrogen
Causes lung damage
reduce the effects of oxides of nitrogen
Fix catalytic converters in cars to reduce nitrogen monoxide to nitrogen gas.
natural sources of methane
Decay of plants and animals by bacterial action
effects on environment due to methane
Is a green house gas that causes global warming
man made sources of unburnt hydrocarbons
Incomplete combustion of hydrocarbons in petrol
effects on human health due o unburnt hydrocarbons
Causes cancer
effects on the environment due to unburnt hydrocarbons
Reacts with oxides of nitrogen to form smog and ozone
reduce the effects of unburnt hydrocarbons
Ensure combustion of hydrocarbons in petrol is complete
Fix catalytic converters to oxidase unburnt hydrocarbons to carbon dioxide and water
effects of acid rain
Corrodes buildings
Increases acidity of water harming aquatic life
Increases acidity of soil harming crops
reducing the effects of acid rain
Reduce acidity with slaked lime
Burn fuels with less soulful like coal
Put catalytic converters in cars to reduce soulful dioxide and oxides of nitrogen
effects of global warming
Polar ice caps melt increasing water level and causing floods in countries
harmful gas given put in catalytic converters
Carbon dioxide which is a green house gas that traps heat and cause global warming
2 alterative fuels
Ethanol mixed with petrol and biogas
advantages of using ethanol fuel
Less polluting compared to pure petrol and renewable resource
