Fuels and Earth Science Flashcards
What are the different sections of crude oil called?
Hydrocarbon fractions
Give the order of the fractions that come out of the fractionating column from top to bottom.
LPG, Petrol, Kerosene (paraffin), Diesel Oil, Fuel Oil, Bitumen
Do longer or shorter chain hydrocarbons drain out near the bottom of the fractionating column?
Longer
What do compounds in a homologous series share similar what?
Chemical Properties
Why do longer chain hydrocarbons have a higher melting point?
Stronger intermolecular forces holding the compound together.
Give the word equation for the complete combustion of Dodecane.
Dodecane + Oxygen = Carbon dioxide + water.
What 2 things does incomplete combustion produce?
Carbon monoxide and soot
How is carbon monoxide poisonous?
Combines with red blood calls and stop your blood from carrying oxygen
What causes acid rain?
Sulfur dioxide
Give 2 hazards of acid rain?
Causes lakes to become acidic, killing plants and animals.
Kills trees
Damages Limestone buildings and stone statues
Makes metals corrode
What do nitrogen oxides contribute to?
Acid rain, photochemical smog
What things emit Nitrogen Oxides?
Caused by the energy released by combustion engines
Give 2 pros to Hydrogen Power.
Only produces water as a waste product
Hydrogen created from water is renewable
Give 2 cons to Hydrogen Power.
You need special, expensive engines
Hydrogen needs to be manufactured which is expensive which often uses energy from other sources Hydrogen is very hard to store.
What is Cracking?
Splitting Longer chain hydrocarbons into smaller more useful ones.
