Coal

Coal

Coal can be defined as the natural and non-renewable source also called as fossil fuel which is formed due to heating activity. It is made up of mainly carbon but also contains hydrogen, sulphur etc. Coal has many forms, therefore there are classification system for coal.

Classification of coal:

There are 3 types of coal based on the state:

1) Solid coal:Solid coal called as coke. It is formed when heat gets stop and the remaining black part called as solid coal. It is mainly useful to make various kinds of metals and especially iron.

2) Liquid coal: Liquid coal is formed when there is extensive heating to a coke, and the liquid form is called as tar, which is used to make roads. It is also useful in making perfumes, drugs and dyes.

3) Gas coal: It is formed when liquid coal is heated to 100 C then the fumes of gas are called as gas coal. It is useful in making fuel and in industries.

Formation of coal:

There are 4 steps for formation of coal

  1. Mining: It is the extraction or obtaining the various types of minerals from the earth.
  2. Decomposing: The decomposing means all these minerals, dead plant material is decay and convert into coal called as decomposing.
  3. Condensing: Any sort of impurities are removed by condensing and pure form of coal obtained.
  4. Cloning: To increase the amount of coal called as cloning,

Uses of coal:

  • Coal is used in electricity generation.
  • It has important use in cement production.
  • For the purpose of chemical production, coal is majorly used.
  • To produce the various types of metals and metallurgical the coal is used.
  • Used during industrial revolutions.
  • In past times, the coal fuel was used for working of trains.

Question and answers:

1) What is coal?

Answer: Coal can be defined as the natural and non-renewable source also called as fossil fuel which is formed due to heating activity. It is made up of mainly carbon but also contains hydrogen, sulphur etc. Coal has many forms, therefore there are classification system for coal.

2) What are different types of coal?

Answer:

1) Solid coal: Solid coal called as coke. It is formed when heat gets stop and the remaining black part called as solid coal. It is mainly useful to make various kinds of metals and especially iron.

2) Liquid coal: Liquid coal is formed when there is extensive heating to a coke, and the liquid form is called as tar, which is used to make roads. It is also useful in making perfumes, drugs and dyes.

3) Gas coal: It is formed when liquid coal is heated to 100 C then the fumes of gas are called as gas coal. It is useful in making fuel and in industries.

3) What is the process of coal formation?

Answer:There are 4 steps for formation of coal

  1. Mining: It is the extraction or obtaining the various types of minerals from the earth.
  2. Decomposing: The decomposing means all these minerals, dead plant material is decay and convert into coal called as decomposing.
  3. Condensing: Any sort of impurities are removed by condensing and pure form of coal obtained.
  4. Cloning: To increase the amount of coal called as cloning,

4) What are the uses of coal?

  • Answer:Coal is used in electricity generation.
  • It has important use in cement production.
  • For the purpose of chemical production, coal is majorly used.
  • To produce the various types of metals and metallurgical the coal is used.
  • Used during industrial revolutions.
  • In past times, the coal fuel was used for working of trains.

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