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On Earth, gravity determines how the flame burns. All the hot gases in the flame are much hotter (and less dense) than the surrounding air, so they move upward toward lower pressure. This is why fire typically spreads upward, and it’s also why flames are always “pointed” at the top.
Why do fires burn?
Fire is the result of applying enough heat to a fuel source, when you’ve got a whole lot of oxygen around. As the atoms in the fuel heat up, they begin to vibrate until they break free of the bonds holding them together and are released as volatile gases.
Why does fire burn up and not down?
The pull of gravity draws colder, denser air down to the base of the flame, displacing the hot air, which rises. This convection process feeds fresh oxygen to the fire, which burns until it runs out of fuel. Without gravity, hot air expands but doesn’t move upward.
Does fire get burned?
Can fire *be* burned? Though as a wall built partly of flammable material I wish fire could be burned, it can’t. Fire is just the light and heat resulting from oxidation of fuel; there is nothing in fire to oxidize, because fire itself isn’t a substance it’s a process.
How is blue fire created?
The color blue indicates a temperature even hotter than white. Blue flames have more oxygen and get hotter because gases burn hotter than organic materials, such as wood. When natural gas is ignited in a stove burner, the gases quickly burn at a very high temperature, yielding mainly blue flames.
How is fire created?
Fire is a chemical reaction in which energy in the form of heat is produced. When forest fuels burn, there is a chemical combination of the oxygen in the air with woody material, pitch and other burnable elements found in the forest environment. This process in known as Combustion. Fire begins with ignition.
Is the sun made up of fire?
The Sun isn’t “made of fire”. It’s made mostly of hydrogen and helium. Its heat and light come from nuclear fusion, a very different process that doesn’t require oxygen. Ordinary fire is a chemical reaction; fusion merges hydrogen nuclei into helium, and produces much more energy.
Can you make fire without oxygen?
The last side of the fire triangle is oxygen. Air is made-up of about 21% oxygen, 78% nitrogen and less than 1% other gases including carbon dioxide and water vapor. Fire only needs about 16% oxygen to burn. Without oxygen, fires won’t burn.
Does fire exist in space?
In space, of course, you can’t have any fires because there isn’t any oxidizer (i.e. oxygen) to sustain the combustion process. In space, of course, you can’t have any fires because there isn’t any oxidizer (i.e. oxygen) to sustain the combustion process.
Can water be burned?
You can’t burn pure water, which is why we use it to put out fires instead of starting them. You can, however, break it down into hydrogen and oxygen by putting energy into it, in the form of an electric current.
Why is fire not considered alive?
People sometimes think fire is living because it consumes and uses energy, requires oxygen, and moves through the environment. The reason fire is non-living is because it does not have the eight characteristics of life. Also, fire is not made of cells. All living organisms is made of cells.
Is there anything that Cannot burn?
Studies have found that fluorine, nitrogen and carbon dioxide can all support combustion reactions of less common materials when conditions are correct. If you are trying to find something that will never burn, the noble gases are an excellent example.
How hot is purple fire?
White: 1300-1500 °C (2400-2700 °F) Blue: 1400-1650 °C (2600-3000 °F) Violet: 39400 °C (71000 °F)Jul 2, 2020.
Is white fire real?
White is an elusive fire color because the fuel that supports a flame burns with its own characteristic spectrum.How Hot is White Fire? Flame Color Temperature Yellow 1,200 to 1,400 °C (2,100 to 2,500 °F) White 1,400 to 1,600 °C (2,500 to 2,900 °F).
How hot is black fire?
The temperatures at the core during the explosion soar up to 100 billion degrees Celsius, 6000 times the temperature of the Sun’s core.
How do you explain fire to a child?
Fire is a chemical reaction that releases light and heat. Substances combine with oxygen in the air, combusting with a flame and often smoke. Fires require fuel, oxygen and heat to burn. Different types of fuel include coal, oil and wood.
What are the 4 types of fire?
Classes of fire Class A. A class A fire is burning flammable solids as fuel. Class B. Class B fires are burning flammable liquids. Class C. Class C fires burn flammable gases. Class D. Class D fires are burning flammable metals. Electrical. Any fire involving electrical equipment is classed as an electrical fire. Class F.
Can fire burn underwater?
Originally Answered: Can fire occur underwater? Yes. If you supply fuel and oxidizer. There are also flares that burn underwater.
