C3.1.7 - Cleaning up exhausts Flashcards
1
Q
What do modern cars have to make their exhausts less harmful?
A
Catalytic Converter
2
Q
Where is the catalytic converter of a car engine.
A
In between the engine and the exhaust pipe.
3
Q
What is a hydrocarbon?
A
A compound containing only carbon and hydrogen
4
Q
Write the equation for the combustion of a hydrocarbon.
A
Hydrocarbon + Oxygen –> Carbon Dioxide + Water
5
Q
Which substances are released when a petrol engine burns fuel?
A
Carbon Dioxide Water Carbon Monoxide Nitrogen Monoxide Small unburned hydrocarbons
6
Q
Carbon monoxide + Oxygen –>
A
Carbon monoxide + Oxygen –> Carbon Dioxide
7
Q
Octane + Oxygen –>
A
Octane + Oxygen –> Carbon Dioxide + Water
8
Q
What do catalytic converters do?
A
Speed up the reaction of harmful gases to make them less harmful
9
Q
Nitrogen monoxide –>
A
Nitrogen + Oxygen
10
Q
Name the precious metals found inside catalytic converters.
A
Platinum
Rhodium
Palladium
