At 12/6/06 07:37 PM, GoldenZen wrote:
It depends on whats on fire.
Set yourself on fire and step on a scale, get back to us asap k.
Then you would get the weight of the object on fire, and not the weight of the fire.
I found this on my internets
"Combustion is a chemical reaction that is accompanied by the evolution of heat and light. What we see as "fire", or perhaps "flame", is a very hot gas, hot enough to give off light.
In the combustion systems that are familiar to everyday life, the fuel can be a solid, a liquid or a gas. Examples of solid fuels are matches, wood, candle, etc. Examples of liquid fuels are kerosene, alcohol, etc. Examples of gaseous fuel are methane, propane, acetylene, etc. In case of a solid fuel such as wood, the heat of combustion causes a portion of the solid at the surface to become a gas through either vaporisation or through a process called pyrolysis. This gaseous fuel then diffuses towards a region known as the 'reaction zone', where the fuel mixes with the oxidiser and the actual chemical reaction occurs. Although the combustion reaction is taking place in the gas region, a flame or fire has never been called a gas.
Fire holds a funny place in people's mind. At one point in history, it was considered one of the elemental components of matter, along with earth, air, and water. It is still not uncommon for people to think it is some exotic state of matter. In fact, it is just a very hot gas, hot enough to give off light. Since fire is hot gas, you may say that it has weight."
