16. (a) State the differences between lignite and anthracite in terms of
their-
(1) Carbon content.
(li) Grade of coal.
Answers
Answer:
There are four major types (or “ranks”) of coal. Rank refers to steps in a slow, natural process called “coalification,” during which buried plant matter changes into an ever denser, drier, more carbon rich, and harder material. The four ranks are:
Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter.
Bituminous: Bituminous coal is a middle rank coal between subbituminous and anthracite. Bituminous usually has a high heating (Btu) value and is the most common type of coal used in electricity generation in the United States. Bituminous coal appears shiny and smooth when you first see it, but look closer and you may see it has layers.
Subbituminous: Subbituminous coal is black in color and dull (not shiny), and has a higher heating value than lignite.
Lignite: Lignite coal, aka brown coal, is the lowest grade coal with the least concentration of carbon.
PLEASE MARK ME THE BRAINLIEST
Answer:
The following are the differences between anthracite and lignite: 1) Anthracite is the coal of highest grade whereas Lignite is the lowest grade coal. ... 4) Anthracite is low in sulphur and high in carbon whereas Lignite is high in sulphur and low in carbon.
Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite