Question

what are properties of coal (class 8) ​

Answer 1

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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Answer 2

Answer:

Moisture

volatile matter

ash

fixed carbon

relative density