Why does iron does not burn but iron filings burns?
Answers
Answered by
0
The mass of a small particle is such that the entire particle can be heated to ignition temperature. An iron rod will not burn as it has relatively very less surface area per unit mass but iron filings with more surface area per unit mass can burn in air and get converted to iron oxide.
Answered by
1
1. Though the Heat Conductivity of Iron is quite good, still it needs much higher temperatures to melt than the iron fillings as the Bar starts melting layer wise....
2. Also since the Surface Area of Iron Fillings is much greater than Iron Bar, so it makes them easier to absorb Heat from all the sides and thus melt at a lower temperature as compared to Iron Bar...
I hope you got what was you looking for... O:)
2. Also since the Surface Area of Iron Fillings is much greater than Iron Bar, so it makes them easier to absorb Heat from all the sides and thus melt at a lower temperature as compared to Iron Bar...
I hope you got what was you looking for... O:)
Similar questions