Question

a type of combustion observed in the sudden burning of coal and phyrite
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Answer 1

Answer:

Answer ☺️

Spontaneous combustion is a process in which oxidation reaction takes place without the interference of an external heat source. The increase in temperature is caused by the heat liberated by coal through chemical reactions [22]. ... on the coal surface when a new coal seam is exposed to atmospheric conditions.

Answer 2

Answer:

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