It does not influence spontaneous combustion of coal which can lead to big fire * rank of coal surface area of coal exposed to air ambient air temperature oxygen content of the air
Answers
hey mate , here's your answer....
•Spontaneous combustion of coal:-
The process of self heating of coal or other carbonaceous material due to auto oxidation resulting eventually in its ignition is termed as “spontaneous heating”.
• It is the most important cause of fires in coal mines across the world.
*Extra information :-
Coal can ignite spontaneously when exposed to oxygen, which causes it to react and heat up when there is insufficient ventilation for cooling.
Large manure piles can spontaneously combust during conditions of extreme heat.
Since hot air cannot expand easily underground, pressure builds in the mine. If this pressure is high enough, it can cause the air ahead of the combustion zone to compress and cause a shock wave.
Ventilation is the most common method to avoid such methane explosions in coal mines.
....hope this helps....