topic 9 - chemistry of the atmosphere (4. air pollution)

Question 1

what is combustion

Answer 1

combustion, a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.

Question 2

what happens during combustion

Answer 2

carbon and hydrogen in these compounds are oxidised so co2 and water vapour are releasedd into the atmosphere

Question 3

what is complete combustion

Answer 3

when there’s plenty of oxygen all fuel burns

Question 4

what is incomplete combustion

Answer 4

not enough oxygen so not all fuel burns, solid particles (particulates) made of foot and hydrocarbons are released and carbon monoxide as well as co2 is released.

Question 5

what problems do particulates cause

Answer 5

if inhaled can get stuck in the lungs and cause damage, respitory problems
bad for environment

Question 6

what problems can carbon monoxide produce

Answer 6

stop blood from carrying oxygen around body
lack of oxygen leads to fainting
hard to detect as it has no colour or smell