Which one of the following is a property of coal?

What is the property of coal?

Result of chemical composition and physical characteristic (proximate, ultimate analysis and calorific value of coal and mangrove wood were as follow: coal from Kaltim Prima Coal were moisture: 16.11%, ash: 3.77%, volatile matter: 43.10%, fixed carbon: 37.01%, carbon content: 44.86%, sulfur content: 0.130% and …

What is the physical property of coal?

The porosity also affects the physical and chemical properties of coal. The surface and body of coal are full of holes composed of organic matter and minerals, and coal is a porous solid substance with different pore size distributions; micropores are the main type of pore.

Which of following is a chemical property of coal?

The organic matter in coal consists mainly of carbon, hydrogen, oxygen, nitrogen, sulfur, and some other elements. Carbon, hydrogen, and oxygen account for more than 95 % of the organic matter in coal.

What are 4 types of coal?

Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.

What are the two properties of coal?

Other properties, such as hardness, grindability, ash-fusion temperature, and free-swelling index (a visual measurement of the amount of swelling that occurs when a coal sample is heated in a covered crucible), may affect coal mining and preparation, as well as the way in which a coal is used.

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What is coal an example of *?

Coal is an example of Sedimentary rocks. Coal is a biochemical sedimentary rock because coal is formed from organic matter or sediment that comes from biological processes. Coal is typically found near swampy areas, or areas where sediment has little contact with oxygen.

How many types of coal are there?

Coals are classified into three main ranks, or types: lignite, bituminous coal, and anthracite.

What are the required properties of coal?

Chemical properties of coal

  • Moisture. Moisture is an important property of coal, as all coals are mined wet. …
  • Volatile matter. …
  • Ash. …
  • Fixed carbon. …
  • Relative density. …
  • Particle size distribution. …
  • Float-sink test. …
  • Abrasion testing.

What is the process of using coal?

Coal-fired plants produce electricity by burning coal in a boiler to produce steam. The steam produced, under tremendous pressure, flows into a turbine, which spins a generator to create electricity. The steam is then cooled, condensed back into water and returned to the boiler to start the process over.