How is charcoal obtained from wood? Why is charcoal considered a better fuel than wood?
Charcoal is obtained from wood by burning the wood in a limited supply of oxygen. During this water along with the volatile components gets evaporated and charcoal is left behind as a residue.
Charcoal is considered a better fuel than wood because:
* Charcoal has the highest heat generation efficiency.
* Charcoal as compared to the wood produces less smoke.
* Charcoal leaves very less residue behind.
* Charcoal burns without flames.