If carbondioxide does not helps in burning than why does coal burn????

Question

answer soon coz need to answer it 2 some 1!

n exact answer please!!!

Answer 1

cuz its burnable?

Answer 2

the simple answer is that a combustion reaction ("burning) involves some carbon hydrogen compound (like coal) with combine with oxygen to produce carbon dioxide, water and heat. If you are wondering what CO2 can't replace coal, just remember the rule for combustion.

Answer 3

Coal is made up of carbon and hydrogen.

When you burn it you are basically adding oxygen.

So the products are carbon dioxide, CO2 (and carbon monoxide, CO, sometimes) and water, H2O.

I'm not sure what exactly you are asking...

Answer 4

coal is only carbon it reacts with oxygen to give carbondioxide which is exothermic reaction. carbondioxide does not combines with more oxygen.

Answer 5

This is a good question. Coal is essentially carbon plus a number of impurities:

C + O2 → CO2

Why doesn't the CO2 extinguish the burning coal? Well the simple answer is that it does. That is if you allow it to. A normal coal fire made in a coal burning stove has a smokestack (chimney) to cause a through draught that draws air (oxygen) through the burning coal and carries the resulting CO2 away to the atmosphere. If you close the smoke stack off, the coal fire will become very infficient and even be extinguished due to lack of oxygen and accumulation of CO2 around the fire.

You can demonstrate this in a similar way by your own breathing: We inhale oxygen from the air which is converted to CO2 which we exhale - just like a fire. We cannot breathe CO2 or air with a high concentration of CO2. It is necessary that the CO2 we produce is removed from our environment so taht we can continue to breathe good air. If you were to enclose your face in a plastic bag, (DANGER !! NEVER TRY TO DO THIS)then the CO2 we produce (just like what happens in a coal fire) cannot escape and we would soon be "extinguished" bythe build up of CO2

Answer 6

coal is only carbon & not carbondioxide. When we burn carbon undergoes oxidation reaction & becomes carbondioxide.

Answer 7

Coal consist of carbon and some impurities.

Carbon burns in air to form carbon-dioxide.

But carbon-dioxide will not burn.

Answer 8

it is composed of Carbon Monoxide and Carbon Dioxide but the carbon dioxide does not settle at the base of the flame so it does not puts it off however the other gas carbon monoxide helps in burning which gives it the blue coloured flame....