What happens when coal is burnt in air?

What happens when coal is burnt in the presence of oxygen?

At the operating temperature of about 980 °C (1,800 °F), the oxygen reacts with coal to form carbon dioxide, thereby producing heat to sustain the endothermic steam-carbon and carbon dioxide-carbon reactions.

What happens when coal is burnt in the presence of air write down the word equation for the process?

a] burning of coal in sufficient supply of air. … If coal burns in sufficient amount of oxygen, it burns to produce carbon dioxide and water vapours. C + O 2 → CO 2 + Heat. A large amount of heat is released in this process hence it is an exothermic reaction.

Does coal burn a lot of air?

In furnaces, it is calculated that nearly, 200 cubic feet of air pass through the fuel for the combustion of one pound of coal. We see by this what an amount of air is necessary to be admitted into rooms during the winter season for the complete combustion of the fuel in stoves and grates.

At what temperature does coal ignite?

Ignition temperature of coal and other dust is not affected by particle size. A big difference is made by the way coal dust comes in contact with a heat source. Thus, layered powder of coal can ignite at a much lower temperature (160°C approx.), whereas a cloud of coal dust will need 450–650°C to ignite.

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What is the formula of coal?

The chemical formula of coal is reported as: C135H96O9NS. Coal is usually taken as 85% carbon based on dry mass.

Which gas is formed when carbon dioxide is burnt in air?

Carbon, as graphite, burns to form gaseous carbon (IV) oxide (carbon dioxide), CO2. Diamond is a form of carbon and also burns in air when heated to 600-800°C – an expensive way to make carbon dioxide! When the air or oxygen supply is restricted, incomplete combustion to carbon monoxide, CO, occurs.

Are carbon dioxide properties similar to oxygen?

The properties of carbon dioxide are- Similar to oxygen. Similar to carbon. Totally different from both carbon and oxygen.

Does coal last longer than wood?

Being far denser than wood, coal burns more steadily and longer. Coal stoves may need attention only twice a day at most, and they may burn more than two days before they need to be resupplied, depending on the stove. … Anthracite coal generates 8 to 10 percent ash per ton – more than wood.

Does coal burn cleaner than wood?

* Coal, for example, is a dirty fuel. … * Also, dry wood lights easily, but a coal fire requires much more kindling to get it going. Further, wood burns cleanly, while coal smoke is considered dirty. If you do use coal, anthracite is a relarively clean-burning fuel with a low sulfur content.