fuels CP2 Flashcards
fuels ,crude oils ,combustion and cracking
Homologous series meaning
a group of chemicals which have the same makeup
hydrocarbon meaning
a compound which only contains hydrogen and carbon
crude oil meaning
a mixture of a very large number of compounds
cracking meaning
long chains of hydrocarbons which are broken into shorter chains to meet supply and demand
fraction distillation meaning
the seperation of crude oils
renewable meaning
can be used more than once
what is the order of the boiling point of crude oils from hottest to coolest
gases ,petrol,kerosene,diesel ,fuel oil and bitumen
crude oil gases uses
domestic heating and cooking
petrol use
fuel for cars
kerosene use
fuel for planes
diesel use
fuel for some cars and also trains
fuel oil use
fuel for ships and power stations
bitumen use
used to surface roads and roofs
describe trends in the chain length
highest temp =smallest chain=most flammable
what is the difference between complete and incomplete combustion
complete combustion -plenty of oxygen
incomplete combustion-lack of oxygen
name the production and problems due to carbon dioxide
production -combustion of fuel that contain carbon
problems-climate change
name the production and problems due to carbon monoxide
production- incomplete combustion of fuels that contain carbon
problems-toxic gasses can cause drowsiness ,loss of consciousness and death
colorless and oudourless
name the production and problems due to carbon particles
production -incomplete combustion of fuels that contain carbon,particularly hydrocarbons with bigger molecules e.g diesel
problems-causes global dipping
damages lunges and causes cancer
name the production and problems due to sulfur dioxide
production- produced when fuels that contain sulfur impurities are burnt
problems-causes acid rain which damages trees and buildings and kills animals
name the production and problems due to nitrogen oxide
production-caused by nitrogen reacting with oxygen at high temperatures e.g. car engines
problems-causes acid rain and breathing problems
why is cracking needed
to meet supply and demand
