When fires burn, is there a correlation between the flame's color and its temperature?
920954
The most common flames are glowing carbon (all your examples are carbon based fuels) and the gases in air, most notably oxygen. \n\nPretty much a 'normal' flame is yellowish (carbon glowing) and a bit of blue (oxygen glowing) on the bottom.\n\nThe oxygen supply determines the color changes more than anything. More oxygen would push the yellow toward white and the blue increases.\n\nGet an "A".
628384
In chemical qualitive analysis, this is known as a flame test.  Many metals (and some non-metals) have distinctive colors.\n\nThe heat of the flame excites one or more electrons of the metal atom causing it to go to a higher energy state.  When the electron returns to the "ground state" electromagnetic energy is released and this appears as light of a specific color.
223521
Iron will generally give a dark red flame caused by the excitation of the electrons in the iron atoms.\nOther common colors produced by other elements include:\nRed color= Lithium compounds such as lithium oxide,strontium compounds and calcium compounds.\nYellow color= any sodium compounds e.g sodium hydroxide or sodium carbonate\nGreen color=Barium, molybdenum, boron, thallium, phosphorus, tellurium, lead, antimony, or zinc compounds.\nBlue color=Copper, indium or arsenic componds.\nPurple color=Potassium, rubidium, or cesium compounds
404427
The different chemicals in the fuel change the color of the flame. For example, if you burn copper it turns blue/green. if you burn Lithium it turns red. Etc.
761839
Complete combustion produces a much hotter flame than incomplete combustion for a given amount of methane reacting.\n\nA flame undergoing complete combustion is typically much hotter and is usually light blue (non-luminous flame), as opposed to one which is undergoing incomplete combustion which is cooler and yellower (luminous flame).
79860
The theory of the pneumatic pyrometer, in which gas temperature is determined from density measurements, is outlined and the design and characteristics of a small instrument are reported. Calibration curves covering a wide temperature range (200 to 1550° C) are given and the use of the instrument is described. :-)
59240
depends mainly on the chemicals in the wood because it has to be extremely hot for a blue or green or any color except red/orange/yellow flame. If you want to have some fun with the color you can do this:\nCopper sulphate=green/blue flame\npotassium cloride= purple/blue flame\nstrontium cloride= brilliant red\nboron(borax)=pure green flame\nLithium= red\nplace something sith one of those elements or compounds in a fire and you will get the color flame listed.
685907
Temperature speeds up reaction rate.  Until you had the high temperature (flame) the reaction (gas burning) couldn't happen.  The temperature is then more or less constant unti the gas runs out, and then the reaction stops but not due to temperature, just due to lack of reactant.
619089
That it's hot.  They can feel heat from a fire and you tell them that's what red is.
115200
Hot air is less dense than cold air.\nThe air around the fire is very hot and bends light like a lens. \nAs the fire is not uniform, the air heats and cools with the flames. This causes light to bend in different degrees. Your eyes follow these changes the objects behind the fire seems to be shimmering.
83789
it depends completely onthe type of wood that you are burning ... some woods burn hotter than others.
854517
It is possible, you just have to feed so much premixed air forced down the fuel's throat that it just can't burn fast enough.\n\nA bunsen burner can do that, which is what happens when you adjust the air inlet until it gives a bright blue.\n\nIf there's any yellow in it then its not quite 100%.\n\nAlmost any normal flame is grossly underoxygenated, the smoke, the soot, the smell, the orange-yellow color, wouldn't even exist if it oxidized completely, leaving nothing but CO2 and water vapor.
422428
Fire requires fuel, heat, and energy to exist so as long as it gets started with enough heat (ie: match friction), and has enough to burn (wood, fuels), and oxygen as another source of fuel, it will burn.
641178
"Fire is the rapid combination of oxygen with fuel in the presence of heat, typically characterized by flame, a body of incandescent gas that contains and sustains the reaction and emits light and heat." \n\nLet's go through this bit by bit:\n\n(1) Rapid combination of oxygen with fuel in the presence of heat. Oxygen, fuel, and heat are the essential ingredients of fire.\n\n(2) Typically characterized by flame. The pup qualifier "typically" allows me to sidestep the issue of apparently nonflaming fires, like you get with burning charcoal. I suspect charcoal fires do create flame--you just can't see it due to the lack of impurities or incompletely burned fuel in the plume. (You can't see a fuel fire at an Indy or CART race either, because the cars run on clean-burning methanol.) But that's a matter we can leave for another day.\n\n(3) Body of incandescent gas. Flame defined. Most encyclopedia and dictionary definitions blow past this entirely, allowing persons such as yourself to imagine that fire is "pure energy" or similar nonsense. We say "body" because the gas has a characteristic structure and composition. We say "incandescent" because (a) it sounds scientific, (b) it means "luminous with intense heat," precisely what we are attempting to convey, and (c) if the Teeming Millions are going to learn one vocabulary word today, by God "incandescent" should be it.\n\n(4) Contains and sustains the reaction. Flame isn't just the result of fire; it is the fire. What's more, without the flame's heat the fire would go out.\n\n(5) Emits light and heat. Duh. However, we mustn't overlook the obvious.
233432
The color depends mainly on three factors:\n\n1: The material. Different materials burn with different color\n\n2: Temperature. A material subjected to different temperatures will glow with different colors. (The speed through the atmosphere will give different temperatures)\n\n3: Distance to object. Colors are spread because of the air in the atmosphere, just look at the Sun, red when the light travels far through the air and yellow/white when the distance is shorter.
267371
the hotter fire is a dfferent color blue is actually hotter than orange flames
442818
Yes, darker colors absorb heat quicker.\n\nFor example, you would not want to wear a black shirt outside when it is hot out.\nIt would be smarter to wear a white shirt, because it would not get hot as fast.