definision coal

Coal Definition & Meaning | Dictionary.com

Coal definition, a black or dark-brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. See more.

Coal - Wikipedia

OverviewEtymologyGeologyHistoryEmission intensityChemistryElectricity generationCoal industryCoal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands—called coal forests—that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian) and Permiantim…Wikipedia · CC-BY-SA

How is Coal Formed? - Definition, Mining & Uses with Videos

What Is Coal?How Is Coal formed?Uses of CoalThe energy we get from coal today comes from the energy that plants absorbed from the sun millions of years ago. Did you know that coal contributes approximately 40% of the world’s electricity production? In other words, the world relies on this fossil fuel for energy production more than any other energy source, including oil, natural gas, nuclear sources, the sun, water, and the wind. As of now, a number of coal deposits present will last for another 300 years, but after that, as it is an exhaustible natural resource, there will be none of this foss…

Coal - definition of coal by The Free Dictionary

coal. (koʊl) n. 1. a black or dark brown mineral substance consisting of carbonized vegetable matter, used as a fuel. 2. a piece of glowing, charred, or burned wood or other combustible substance. 3.

Coal | Definition of Coal by Merriam-Webster

Definition of coal. (Entry 1 of 2) 1 : a piece of glowing carbon or charred wood : ember. 2 : charcoal sense 1. 3 a : a black or brownish-black solid combustible substance formed by the partial decomposition of vegetable …

COAL | Definition of COAL by Oxford Dictionary on Lexico

1.2. count noun A red-hot piece of coal or other material in a fire. ‘the glowing coals’. More example sentences. ‘Finally, his neck stiff from looking up, the Professor returned to studying the glowing coals of the fire.’.

Coal - Energy Education

Coal HistoryEnergy ContentCoal MiningCoal has been used as an energy source for nearly 2000 years. For example, coal was widely used for home heating in early 17th century England. But the Industrial Revolution dramatically increased the demand for coal. Specifically, James Watt's improvements to the steam engine made coal useful for doing work. By the 1830's coal mining was a booming industry in the eastern United States with coal supplied for industry and steam locomotives on newly develo…

What is coal? - USGS

Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material. It is formed from plant remains that have been compacted, hardened, chemically altered, and metamorphosed by heat and pressure over geologic time.Coal - Wikipediaen.wikipedia.orgCoal | 2008-2021 Data | 2022-2023 Forecast | Price | Quotetradingeconomics.comCoal | Uses, Types, Pollution, & Facts | Britannicawww.britannica.comHow Is Coal Made | How Is It Made?howisitmade.orgCoal | National Geographic Societywww.nationalgeographic.org

Coal | Uses, Types, Pollution, & Facts | Britannica

Coal is a major source of energy in the production of electrical power using steam generation. In addition, gasification and liquefaction of coal produce gaseous and liquid fuels that can be easily transported (e.g., by pipeline) and conveniently stored in tanks.

What does coal mean? - Definitions for coal

Coal (noun) a black, or brownish black, solid, combustible substance, dug from beds or veins in the earth to be used for fuel, and consisting, like charcoal, mainly of carbon, but more compact, and often affording, when heated, a large amount of volatile matter.