How Does A Log Of Wood Catch Fire?
I.INTRODUCTION
As today is the fourth day of Science Specials Week, let us explore a very common but an amazing thing!
So, to start off with, the temperature to which a fuel needs to be heated is called its ignition temperature.
Fire is the result of a combustion reaction, typically a reaction between O2 in the atmosphere and combustible substances like paper, wood, other fuels etc.
A fuel is a substance that burns to release high amount of heat energy on combustion. A fuel can be solid like coal and wood, liquid like petroleum and gas like CNG.
II.HOW DOES A WOOD PIECE CATCH FIRE?
Step 1: Something heats the wood to its ignition temperature. Like- focused light, friction, something else that is already burning etc.
Step 2: When the wood reaches 260 degree Celsius, the heat decomposes the material that makes up the wood. This decomposed material is released in the atmosphere as a volatile gas as a compound of Carbon, Oxygen and Hydrogen.
Step 3: When the gas is hot enough, the compound molecules break apart and the atoms recombine with oxygen to form molecules like water, carbon dioxide and other products.
Step 4: Carbon atoms rising in the flame emit light as they heat up. This is where fire is produced and this is what we call as fire. Finally, the piece of wood burns until it is produced to ash.
*Bonus Fact - Heat producing light effect is called incandescence.
-----------------
I hope today's blog was as useful to you as your curiosity and you LEARNED something great from here!
Thank you for reading
Made By - Naman Dwivedi
------------------
Post a Comment