A sample of wood with a mass of 3.0 grams was burned in an open dish. The ashes weighed 1.2 grams. Considering the law of conversation of mass, what is the explanation of what happened to the rest of the wood?
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A sample of wood with a mass 3.0 grams was burned in a open dish, the resulting weigth of the ashes was 1.2 grams. The rest of the wood was burned into gases of equivalent weight.
1) When wood is burnt in open air, with the help of oxygen and heat, it is transformed into carbon dioxide, water vapour and ashes.
2) Ignition and combustion of wood mainly depends on pyrolysis which is also known as thermal combustion.
3) The loss in weight of the ashes is due to the fact that, gases and water vapour are also formed due to the combustion of wood.
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