Why is LPG considered a better fuel than coal?



LPG (Liquefied petroleum gas) is considered a better fuel than coal because of the following reasons:
1. It has a higher calorific value (50 kJ/g) in comparison to the coal (30 kJ/g).
2. It burns with a smokeless flame and thus does not pollute the air, whereas coal produces carbon-containing smoke on burning which causes air pollution. 
3. It is easy to handle and more convenient to store in comparison to coal.
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