Carbon dioxide and heat are generated when coal is burnt in the presence of oxygen. – Coal is mainly made out carbon contents. – So,the combustion of the coal is actually the combustion of carbon. – During this combustion process,the carbon is chemically bonded with the atmospheric oxygen and forms carbon dioxide.
What happen when coal is burnt in presence of oxygen write its chemical equation?
Following chemical reactions takes place in the combustion of coal with the release of heat: C + O2 = CO2 + 8084 Kcal/ Kg of carbon (33940 KJ/Kg) S + O2 = SO2 + 2224 Kcal/Kg of sulfur (9141 KJ/Kg) 2 H2 + O2 = 2 H2O + 28922 Kcal/Kg of hydrogen (142670 KJ/Kg)
What happens when coal is burnt in air?
Burning coal produces large amounts of sulfur dioxide, nitric oxide, smoke, and dust as well as other pollutants that contaminate the air in the form of coal smog.
What happens when charcoal burns in oxygen?
Charcoal reacts with oxygen of the air at a glowing red heat to form colourless carbon monoxide gas, which then burns with a blue flame with more oxygen from the air to produce carbon dioxide gas. … Unburned carbon monoxide gas can be given off by burning charcoal.
When coal is burnt what is formed?
But when coal burns, its carbon combines with oxygen in the air and forms carbon dioxide. Carbon dioxide is a colorless, odorless gas, but in the atmosphere, it is one of several gases that can trap the earth’s heat.
Does coal ignite easily?
Coal, and particularly brown coal, is very reactive to oxygen, and will generate CO2 and that creates heat. As the coal gets hotter it will eventually get to flame temperature and that coal will burn.”
Does coal burn with glow?
(i) A coal or charcoal burns with just a glow red and gives out heat without flame however LPG burns with flame, this is because a flame is produced only when gaseous substances burn.
Which is the purest form of coal?
Does burning coal produce carbon monoxide?
Carbon monoxide is produced when fuels such as gas, oil, coal and wood do not burn fully. … Following a build-up of carbon dioxide in the air, the fuel is prevented from burning fully and it starts to release carbon monoxide.
Does wood turn into coal?
When wood is burned, oxygen and other elements in the air (mainly carbon, hydrogen and oxygen) react to form carbon dioxide that is released into the atmosphere, while the minerals turn into ashes. … Thus the carbon is left to turn into charcoal.
How can you stop the charcoal from burning?
Suffocate the fire – Simply close the lid on your grill, and shut the vents until ash has completely cooled, at least 48 hours. Spray away – To speed things up, you can spray coals down with water before suffocating the fire.
Can you burn carbon?
Yes, diamond can be burned. The most common form of burning in everyday life is carbon combustion. In carbon combustion, carbon atoms break their bonds with each other and with other atoms (which requires energy) to form bonds with oxygen atoms (which releases even more energy than first required).
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.
Which is the best quality of coal?
Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter.
What is the difference between coke and coal?
What is the difference between coal and coke fuel? Coal is a shiny, black fossil fuel that contains impurities, emits smoke when burned, and produces less heat than coke. Coke is a dull, black byproduct of coal that burns hotter and cleaner.