Homework Answers
Flour becomes explosive in nature when they are hanging in the air as dust and when they are much dense in the atmosphere ,like inside a flour mill. Flour grains are so small that they can burn instantly. When one grain burns, it burns other grains near it, and the flame front can flash through a dust with an explosive force.This is known as dust explosion.
A dust explosion is known as the rapid combustion of fine particles hanging in the air within an enclosed space. Dust explosions occur when any powdered combustible material is present in high concentration in the atmosphere and oxygen is also available for the combustion
All a dust explosion inside a flour mill take is a small spark ,so we have to strictly avoid any open flames .
Thank you.
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17.2 1. Why did ancient Rome have strict laws about open flames in flour mills?
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