Wood and paper are fuel or not?

Dear Student , No , Wood and paper are not fuel . The wood is burnt in the limited supply of air to obtain charcoal. When wood is burnt in the limited supply of oxygen, water and volatile materials are removed and charcoal is left behind as the residue. Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not : Because for burning or combustion, a substance must me heated to its ignition temperature. Paper has a low ignition temperature, so it catches fire easily. But wrapped around an aluminium pipe does not catch fire as on heating, because it is unable to attain the ignition temperature due to transfer of heat to aluminium pipe which is good conductor of heat. Regards

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