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Consider the problem Trying to start a campfire or bargeque fire. the fire seems to be going and then goes out. this happens a few times and eventually it catches and a good hot fire is produced. Explain in terms of reaction kinetics. How does the wind enter into this explanation?

2007-02-07 12:08:33 · 7 answers · asked by Ballerina 5 in Science & Mathematics Chemistry

7 answers

There's several factors involved here, but generally speaking you have to get the fuel supply initially hot enough to break down the chemical bonds of the fuel supply into a gas. The gas of the wood or charcoal is what is actually burning.
The wind can affect the process either positively or negatively. When you first try to start the fire, let's assume with a match, then if the wind is blowing too strongly it can cool the match below its flash point. After the fire gets burning the wind can fan the flames and assist in spreading the fire. Check out the below web site it explains everything in detail, and it's even about campfires.

2007-02-07 12:32:50 · answer #1 · answered by robert k 2 · 0 0

The way your worded the question might have something to do with your lack of answers but you must understand that a combustion reactions- that is, the type of reaction that occurs when something burns- require three things. These things are heat, fuel, and oxygen.

To get a combustion reaction going, you need to introduce an initial 'boost' if you will of heat. This is called the activation energy. Typically, the heat that the combustion reaction produces is enough to start the reaction with another set of molecules. However, when the wind is blowing it sucks away the heat that the first reaction produced, leaving no activation energy for the next set of molecules to react.

Another reason could be that the wind is blowing away the fuel from the rest of the elements of fire.

Keep in mind that generally a small amount of wind is beneficial for a fire, but when it is just getting started this isn't always the case.

2007-02-07 20:23:55 · answer #2 · answered by Sir Drew M 2 · 0 0

burning wood or coal produces carbon dioxide and water. carbon dioxide is a fire extinguisher. So when the wind blows, or when you blow into the dying flame, the carbon dioxide is actually being blown away, and in the process, oxygen comes in, and replaces the carbon dioxide. this then results to combustion, so the flame goes up again... it has something to do with combustion... I hope this helps...

2007-02-07 20:27:18 · answer #3 · answered by trooper J 4 · 0 0

Maybe the wind wisks by just when there is a spark and that way it gets the fire going. other then that don't have any answer.

2007-02-07 20:20:43 · answer #4 · answered by Vicky C 2 · 0 0

maybe people aren't answering because they don't know... but maybe the wind brings in oxygen...which causes things to burn? Sorry, I dont even know that a bargeque fire is...unless you mean barbeque...:o(

2007-02-07 20:19:08 · answer #5 · answered by Kami 2 · 0 0

The wind has oxygen and oxygen is what starts a fire.without oxygen,it is almost impossible.

2007-02-07 20:23:15 · answer #6 · answered by Anonymous · 0 0

magic

2007-02-07 20:15:59 · answer #7 · answered by mike h 1 · 0 0

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