Combustion Of Alkanes And Effects Flashcards
Why do branched alkanes burn better than straight alkanes
Weaker intermolecular forces as they can’t line up directly
Gases hazardous to humans produced by combustion
Carbon monoxide,carbon dioxide,carbon particulates and unburnt hydrocarbons
Gases that affect the atmosphere produced by combustion
Water (gaseous) and carbon dioxide
Gases that cause acid rain that are produced in combustion
Sulfur dioxide and nitrous oxides (NOx)
Why are unburnt hydrocarbons dangerous
They break down to create photochemical smog and can damage the atmosphere
Main ways of mitigating the damage of the combustion of alkanes
Catalytic converters and flue gas desulfurisation
How does flue gas desulfurisation work
Calcium oxide (aq) is sprayed into the exhaust of power plants and this reacts with the sulfur dioxide to form gypsum
Gypsum uses
Plaster and plaster boards for construction
How do catalytic converters work
They catalyse the products of internal combustion engines and break down NOx,CO and unburnt hydrocarbons into nitrogen and carbon dioxide (respectfully)
Why are catalytic converters honeycombed shaped
To increase surface area
What is inside the catalytic converter
A honeycomb of ceramic materials coated with platinum and rhodium metals (rare earth metals)
