Best answer
24 MJ/kg
People also ask
What percentage of coal is used to generate electricity?
Eighty six percent of the coal burned in the United States is used by power plants to make energy for electricity. When the coal is burned by the power plants, energy produced is in the form of heat. When coal is used by the steel industry, it is first heated and turned into a substance called coke, which is almost pre carbon.
How much does coal pollute the atmosphere?
The combustion of coal, however, adds a significant amount of carbon dioxide to the atmosphere per unit of heat energy, more than does the combustion of other fossil fuels.
How much carbon is in a pound of coal?
Carbon, by far the major component of coal, is the principal source of heat, generating about 14,500 British thermal units (Btu) per pound. The typical carbon content for coal (dry basis) ranges from more than 60 percent for lignite to more than 80 percent for anthracite.
What is produced when coal is burned?
Coal Combustion and Carbon Dioxide Emissions. The amount of heat emitted during coal combustion depends largely on the amounts of carbon, hydrogen, and oxygen present in the coal and, to a lesser extent, on the sulfur content.
