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Question

Although wood has a very high calorific value, we still discourage its use as a fuel. Explain.


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Solution

The following reasons can be considered to discourage the use of wood as a fuel-

  • It has a high ignition temperature, so the combustion process of wood would be a bit tough.
  • The ignition temperature of a substance is the minimum temperature at which the substance catches fire for spontaneous combustion.
  • Burning wood produces many harmful gases such as Carbon monoxide (CO) and carbon dioxide (CO2). Excess of both can kill a person, and it also causes increasing global warming.
  • To use wood as fuel, we would have to cut trees.
  • Trees are very essential for any living being.

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