2007-02-06 00:09:01 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
You are refering to the "Fire Triangle" which consists of:
Fuel, Oxygen and Heat.
Fuel (Wood, paper, etc)
Oxygen (enough in Air)
Heat (From a spark or match)
2007-02-06 02:26:45 · answer #1 · answered by Gregory B 4 · 1⤊ 0⤋
Fire is an 'oxidation' reaction, which can include chemical reactions that do not involve oxygen. Metals that burn in oxygen, eg magnesium would also burn in the gas fluorine, with oxygen completely absent.
Placing a very reactive metal in a fluorine environment could result in spontaneous oxidation, i.e. one requiring no external source of heat (note the spelling of source, Mr Lecturer).
The minimum requirement is thus fuel and a powerful oxidising fluid, in other words the latter could be a liquid.
2007-02-09 11:35:06 · answer #2 · answered by narkypoon 3 · 0⤊ 0⤋
Dawn did not say petrol "speeds up" the reaction...and the guy who insulted her because of that should learn how to spell catalyst before he talks about anyone else. She said it is used as an accelerant - which it is. An accelerant is something used to encourage a fire to take greater hold than it would otherwise, and the term is most often used in the field of forensic investigation. Fire accelerants are any flammable fuel not normally present at the sourse of a particular fire (or present in unnatural amounts)
2007-02-07 07:01:31 · answer #3 · answered by drjaycat 5 · 0⤊ 1⤋
the three main elements that can be used to start a fire are: fuel (what is going to be burnt), oxygen and an ingnition ( to overcome the potential energy to start the fire). Sometimes an accelerant (eg petrol) can also be used.
2007-02-06 03:53:33 · answer #4 · answered by Anonymous · 0⤊ 1⤋
as mentioned earlier, fuel, oxygen and heat. You need these to start a fire, and fire is extingusihed by removing one of these. For example:
Using a CO2 fire extinguisher you remove the heat (it is cold)
Using a fire blanket you remove the oxygen (smother the flames and block off oxygen)
And turning off your gas ring removes the fuel,
2007-02-08 01:12:57 · answer #5 · answered by Anonymous · 1⤊ 0⤋
the guy who sed petrol speeds it up is a fool, petrols a fuel, not a catalist!
*sigh* "whats the world comeing to"
fire, fuel and a scource of activation energy is the answer yewah lookin for
2007-02-06 05:46:55 · answer #6 · answered by Anonymous · 1⤊ 0⤋
Fuel, Oxygen & Ignition
2007-02-06 03:38:30 · answer #7 · answered by Norrie 7 · 1⤊ 1⤋