CH-1295
Catalytic converters
Chemistry · Secondary 4 · Medium · Catalytic converters
A car using unleaded petrol has a catalytic converter in its exhaust system. The exhaust gas still contains some nitrogen oxides.
Which change would help to decrease the amount of nitrogen oxides in the exhaust?
Which change would help to decrease the amount of nitrogen oxides in the exhaust?
- Decrease the surface area of the catalyst in the converter.
- Increase the surface area of the catalyst in the converter.
- Increase the amount of nitrogen in the fuel.
- Lower the temperature in the catalytic converter so reactions are slower.
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