Kerosene
4 marks · NormalKerosene is a fraction obtained from the distillation of crude oil. It is widely used in homes and industries.
State one use of kerosene in transport.
Name one use of kerosene in domestic settings.
Suggest one way kerosene is used in small heaters or lamps.
Explain why kerosene is chosen as a fuel for jet aircraft.
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(a) fuel for jet aircraft
(b) domestic heating oil or paraffin for heating/cooking
(c) burned in small heaters or lamps as a fuel
(d) Kerosene is chosen because it has a suitable boiling point (it doesn't evaporate or freeze easily at high altitude), it burns cleanly, and provides a large amount of energy per volume.
Common mistakes: Confusing kerosene with other fuels such as petrol or diesel
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Marking points
B1 (a) · 1 mark · Identifies a correct transport use: fuel for jet aircraft
B2 (b) · 1 mark · Identifies a correct domestic use: heating oil or paraffin for domestic heating/cooking
B3 (c) · 1 mark · Gives a correct way kerosene is used in small heaters or lamps
B4 (d) · 1 mark · Explains that kerosene is chosen because it is suitable for high altitude (good boiling point), burns cleanly, or provides much energy
Worked solution
a) Kerosene is used as fuel for jet aircraft.
b) Kerosene is used as a domestic heating oil or as 'paraffin' in heaters and stoves.
c) Kerosene is burned in small heaters or lamps to provide heat or light.
d) Kerosene is chosen as a fuel for jet aircraft because it remains liquid at high altitudes, burns efficiently, and releases a large amount of energy.