Catayltic converts:

Question 1

What do catalytic converts remove?

Answer 1

= carbon monoxide- toxic
= oxides of nitrogen
= converts into more stable products

Question 2

What is the problem with CO?

Answer 2

= posionous
= no smell or colour

Question 3

What is the problem with unburnt hydrocarbons?

Answer 3

= irritates longs
= can form smog

Question 4

What is the problem of oxides of nitrogens>

Answer 4

= combind with water to form nitric acid
= can form acid rain

Question 5

What is the structure of a converter?

Answer 5

= honey-comb
= coated with metals (platinum)- catalyst begins a reaction to change the chemical composition of the gases

Question 6

What is the redox reaction?

Answer 6

CO is oxidised ti carbon dioxide
unburnt hydrocarbons are converted into co2 and water vapoir
oxides of nitrogen are reduced to nitrogen

Question 7

When do converts work?

Answer 7

= when they are hot

Question 8

What are catalysts posioned by?

Answer 8

= lead
= only be used by lead free fuels
=