0
the general formula for combustion is someting like this:
organic (carbon/hydrogen based substance)+ oxygen goes to carbon dioxide+ water + ash
pure oxygen is a very important component of this reaction, but normal air is less than a quarter oxygen, so the effect is diluted
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoFire needs four things: # Fuel # Heat # Chemical Reaction # OXYGEN
Wiki User
∙ 14y agoBecause there is a greater concentration of oxygen to react with.
Wiki User
∙ 15y agoin order to burn well the flame uses up oxygen to proudce carbon dioxide and there is a mixture of gases in the air so it needs pure oxygen to burn well
Wiki User
∙ 13y agoAir contains many other gases than oxygen like inert gases, nitrogen etc. Therefore, combustion in air is slower than in pure oxygen.
Wiki User
∙ 13y agoBecause the chemical change is more efficient and more rapid.
Wiki User
∙ 13y agoFire requires oxygen to burn, so it would logically make sense that the higher the concentration of oxygen in the air, the bigger the fire.
Wiki User
∙ 13y agoPure oxygen has more hydrogen than air.
Add your answer:
Earn +20 pts
Why might you note that blowing or fanning hot charcoal briquettes cause them to glow more brightly?
Increase air flow = increased oxygen flow = increase in burn temperature and rate.
Does oxygen make things burn brighter?
Oxygen is what makes things burn at all. The more oxygen there is, the brighter it can burn.
Which elements are more reactive with oxygen group 1 or group 11?
Group 1, the alkali metals, are much more reactive with oxygen than Group 11, the coinage metals.
Why do iron and magnisium burn more in oxygen than in air?
Iron and magnesium burn in air under the right circumstances becasue they combine rapidly with oxygen. (Fire is just the rapid combination of oxygen or another oxidizer, wiht a fuel.) Oxygen is only about 20% of air. If you provide pure, 100%, oxygen under the same circumstances, there is more oxygen to combine with the iron or magnesium, so they can burn faster.
Where does a chemical reaction occur on a candle?
When a candle burns the wax is reacting with oxygen in the air to give out heat and light.If you give the candle more oxygen then it will burn brighter ... but it will burn out more quickly.The burning of the candle (a chemical reaction) is affected by the number of oxygen molecules around it.So the speed of the chemical reaction is affected by the concentration of oxygen
What gas would make a burning splint burn more brightly?
The gas is Oxygen. It burns brighter because Oxygen supports combustion (aka helps other objects to burn).
What gas is present if a lit match flares up brightly?
If the match itself burns brighter, it indicates the presence of more oxygen. It is required for the match to burn at all, and higher levels can make the match burn more rapidly.
Why might you note that blowing or fanning hot charcoal briquettes cause them to glow more brightly?
Increase air flow = increased oxygen flow = increase in burn temperature and rate.
Does oxygen make things burn brighter?
Oxygen is what makes things burn at all. The more oxygen there is, the brighter it can burn.
why fire fighters use pressurized air but not oxygen in the breathing apparatus?
Things burn much more easily in oxygen than in air. For instance, if you put a match that is just smouldering in air into a jar of oxygen it will flare up and burn brightly. Think of what might happen to a fire fighter breathing oxygen in a smouldering building! Then of course there's the basic fact that human beings are meant to breathe air, not oxygen, in the first place.
What happens if you put fire in a tube of oxygen?
If it's a normal fire, where normal everyday materials are burning, then pure oxygen will not put it out, it will make the fire burn stronger. Burning is a chemical reaction, and oxygen is a necessary reactant for combustion.
Why does magnesium burn more in oxygen that in air?
First off, it doesn't burn more, it burns quicker. This is because It's reacting with the oxygen, and in a 100% oxygen environment there's simply more oxygen to react with (the air is 21% oxygen).
Why does sulfur burn more rapidly in oxygen than in air?
Well, oxygen supports burning. Fire needs fuel, oxygen and a spark or another source of ignition. So the more oxygen there is, the faster your substance will burn! There is 21% oxygen in air, and when you have an atmosphere of oxygen, it can go to quite high concentrations. So sulphur will burn in an atmosphere which has a higher oxygen content.
Which elements are more reactive with oxygen group 1 or group 11?
Group 1, the alkali metals, are much more reactive with oxygen than Group 11, the coinage metals.
How does oxygen distribute fire?
Oxygen does not distribute fire. Fire is a chemical reaction between oxygen and some flammable substance. Fire cannot burn without oxygen, and the more oxygen there is, the hotter and faster a fire will burn. More oxygen also makes it easier for materials to ignite.
What makes gasoline burn more efficiently?
Oxygen and heat.
Why is it better to burn fuels in a good supply of oxygen?
If you have a good supply of oxygen you get a more complete burn, which means you get more energy out of the fuel and there are fewer products of incomplete combustion, which are often toxic
