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Combustion and Flame
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25/04/2021 3:17 pm
Topic starter
Give reasons.
1. Water is not used to control fires involving electrical equipment.
2. LPG is a better domestic fuel than wood.
3. Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.
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25/04/2021 3:18 pm
1. Water is not used to control the fire involving electrical equipment because it is a good conductor of electricity. The person using it can get a shock.
2. LPG is a better domestic fuel than wood because
- It does not give out smoke.
- It has high heat content.
- It does not leave ash behind.
- It is easily available.
3. Paper by itself catches fire easily because it is a highly combustible substance. But when it is wrapped on aluminium, it does not bum because aluminium is a good conductor of heat and it takes the heat from paper.