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It is the residue (ash) which is left after the carbon materials are burnt off

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What color is coal when it is burnt?

The colour when coal is burnt is white,when it become ash


Where was coal burnt on the Titanic?

Titanic had 159 furnaces burning over 600 tons of coal a day.


When coal is burnt?

At the power plant.


Is burnt coal reversible?

Once coal has been burnt, it undergoes a chemical change and cannot be reversed back to its original state. The combustion process alters the composition of coal at a molecular level, making it impossible to revert to its pre-burnt form.


What is a coal clunker?

The small pieces of unburnt coal left over when most of the coal has burnt to ash.


What is a burnt out piece of coal?

A burnt out piece of coal is one that has already undergone combustion and no longer contains enough energy or fuel to burn effectively. It appears as a charred, blackened fragment that is no longer useful for producing heat or fire.


What gas is produced when coal is burnt in cars?

methane


When coal is burnt which energy is transformation occurs?

When coal is burnt, the energy transformation that occurs is from chemical energy stored in the coal to thermal energy in the form of heat, which can be used to generate electricity or heat for various applications.


What type of energy released when coal is burnt?

When coal is burnt, it releases thermal energy in the form of heat. This heat energy is generated by the combustion process, which involves burning the coal in the presence of oxygen to produce heat and other byproducts.


Why coal does not give out water?

Coal is an allotrope of carbon. When burnt, coal will give carbon dioxide. Water is not formed, because there is no hydrogen in coal that will be oxidised to water.


What is something that is burnt to produce heat energy?

fuel, coal


What is the wasted energy called when coal is burnt?

The wasted energy when coal is burnt is called waste heat. This is the energy that is not converted into useful work during the combustion process and is released into the environment as heat.