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Sources of Energy — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceSources of Energy3 Marks
Question
How is charcoal prepared? Explain why, charcoal is a better fuel than wood.
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Answer

Charcoal is prepared by burning wood in a limited supply of air, so that water and other volatile materials present in it get removed. Charcoal is a better fuel than wood because it has a higher calorific value than wood, and it burns without producing smoke wheras wood produces a lot of smoke on burning.

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