Question

11. Give two differences between coal and coke. ​

Answer 1

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Coal is a lustrous, black fossil fuel that includes impurities, generates smoke, and generates less heat than coke when burned. Coke is a dingy, black coal waste that burns hotter and cleaner

Coke is a fuel made from mineral coal that has been calcined or dry distilled. It is carbon-based and has a high calorific value, but it is also quite polluting. Steel foundries utilise it as a fuel in their blast furnaces.

Answer 2

Answer:

Coal

• Coal is formed when forests buried under Earth. The wood is subjected to the high pressure and temperature of the Earth in absence of air
• The process by which coal is formed is called carbonisation
• It's carbon content ranges from 60% to 80% and more

Coke

• Coke is formed when coal is strongly heated in the absence of air
• The process by which coke is formed is called Destructive Distillation of Coal
• It's carbon content is 98% or sometimes more