Fuels Earth And Atmouspheric Science

Question 1

Sulphur dioxide SO2
How formed
Problems
Solutions

Answer 1

Combustion of fuels containing S
Causes acid rain
remove S before burning; react fumes with CaO/CaCO3 (flue gas
desulfurisation

Question 2

H2O Water

Answer 2

Combustion of fuels containing H

none (H2O is a greenhouse gas but this is not a problem as H2O are maintained naturally

Question 3

CO2 carbon dioxide

Answer 3

complete combustion of fuels containing C
greenhouse gas causing global warming
burn less fossil fuels

Question 4

CO carbon monoxide

Answer 4

incomplete combustion of fuels containing C
toxic
ensure there is a good supply of air when the fuel is burned

Question 5

C soot/ particulates

Answer 5

incomplete combustion of fuels containing C
global dimming & blackens buildings
ensure there is a good supply of air when the fuel is burned

Question 6

Unburned fuels

Answer 6

some fuel may not burn
wastes fuel and some fuels may be greenhouse gases (e.g. CH4)
engine is well tuned

Question 7

NO/NO2 nitrogen oxides

Answer 7

reaction between N2 and O2 in air at high temperature
causes acid rain
uses catalytic converter in cars