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Question
Why is LPG considered a better fuel than coal?
Solution
Liquefied petroleum gas (LPG) is considered a better fuel than coal for the following reasons.
a) It has a higher calorific value (50 kJ/g) than coal (30 kJ/g).
b) It burns with a smokeless flame and hence does not pollute air, whereas coal produces smoke on burning.
c) It is easier to handle and more convenient to store than coal.
d) It is a clean domestic fuel and does not produce any harmful gas, whereas coal, on burning, produces carbon dioxide, which causes air pollution.
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