why does a popcorn seller blow on the burning pieces of coal
Dpj:
When he blow coal oxygen gas is blow in it so fire get more
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19
Why does a popcorn seller blow on the burning pieces of coal?
Answer by T.E. Woodwose
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A curmudgeon with years of practice.
Burning coal requires oxygen to chemically react (C+O2=CO2). The availability of oxygen is limited in the furnace by several factors such as the friction of the air against the coal. Blowing provides more oxygen to the flame and raises the temperature of the flame. The hotter flame pops the corn more rapidly. Blacksmiths use the same principle to raise the temperature of their forges.
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33
because the burning coal is heat the corn a popcorn seller fans the burning pieces of coal because the oxygen enters the coal and increases the amount of heat.when coal is pulvorised(powder ) the surface area will be more so it cathes fire early than lumps.
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