6. NO and CO gas molecules diffuse over the catalytic surface, they are then adsorbed, temporary bonds formed between catalytic surface and gas molecules, molecules react together, deadsorbed
This is how a three way catalyst works
This is how an oxidation catalyst works
7. Low level ozone can lead to
Breathing difficulties
Split ends
Arthritis
8. Three way catalysts are fitted to diesel engines
False
True
9. Nitrogen oxides are produced in the internal combustion engine, during the high temperature process of burning fuel in the presence of oxygen
True
False
10. Nitrogen dioxide released into the atmosphere is converted into nitric acid, this leads to
Acid rain
Cat and dog rain
11. Oxidation catalysts are fitted to diesel engines
True
False
12. There are two types of catalytic converters commonly in use
Oxidation catalysts and three way catalysts
Reduction catalysts and four way catalysts
13. The honeycomb arrangement in catalytic converters provides little surface area
False
True
14. Nitrogen dioxide aids in the formation of low level ozone which leads to
Respiratory irritation
Heart complications
15. Carbon monoxide can exist for about a month before being oxidised into carbon dioxide
True
False
16. NO and NO2 are produced in the internal combustion engine
True
False
17. Catalytic converters are made in the shape of
Honeycomb
Pugs
Bees
Ham
Eggs
18. Benzene and buta- 1,3-diene are
Known carcinogens
Known criminals
19. Humid sunny days are not of high concern for low level ozone concentrations
False
True
20. Urban areas are not of high concern for low level ozone concentrations
