What determines the type of coal present quizlet?

What one factor determines the type of coal?

The most common classification is based on rank, referring to the degree of coalification that has occurred. The rank of a coal is determined primarily by the depth of burial and temperature to which the coal was subjected over time. With increasing temperature, peat is converted to lignite, a very soft, low-rank coal.

What determines rank of coal quizlet?

What determines the rank of coal? The degree of coalification that has taken place determines the rank of coal. Ranks include: Lignite (brown coal, high moisture), Bituminous Coal (black coal, higher carbon) and Anthracite (metamorphic, >90% carbon).

What are the different types of coal quizlet?

Types of Coal:

  • Peat: Description & Heat & Sulphur Content. – not a coal. – Partially decayed plant matter in bogs & swamps. …
  • Lignite: Description & Heat & Sulphur Content. – brown coal. – Limited supplies in most areas. …
  • Bituminous Coal: Description & Heat & Sulphur Content. – soft coal. …
  • Anthracite Coal.

Why is Western coal preferred over eastern coal in the United States?

Why is “western coal” preferred over “eastern coal” in the United States? Western coal contains less sulfur, so it releases less sulfur dioxide (SO2) gas into the atmosphere when it is burned.

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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 5 main types of coal?

Coal types

Coal Dry, Carbon content (%) Dry, volatile content (%)
Bituminous coal 76-86 14-46
Sub-Bituminous coal 70-76 42-53
Lignite 65-70 53-63
Peat <60 63-69

What is coal formed from quizlet?

coal is formed from dead/decayed plants that are fossilized for millions of years and is applied heat and pressure.

What process caused the peat to become coal quizlet?

For peat to become coal it needs to be buried by sediment and condensed.

Which is not a type of coal quizlet?

Anthracite is hard coal. Sulfite is not a coal.

Why is drainage control sometimes an effective method of landslide control?

anchoring the slope materials. Why is drainage control sometimes an effective method of landslide control? It reduces the amount of water in the hill slope materials.