What is the scale for fire (temperature vs. color)?
335985
Hi there,\n\nTemperature vs colour goes red, orange, yellow, green, blue, violet. It is simply the spectrum of light (think rainbow) because that is what it is based on.\n\nSo red light is actually the coolest, and as you go up the temperature scale, you run through the spectrum to violet.\n\nWhite light is a combination of ALL the different colours of light, so something which glows white hot is just releasing all different levels of energy, so it appears white. So in actual fact, blue (or more accurately violet) is hotter, because if something is blue hot, then it is releasing ALL really high levels of energy, but you rarely get anything which is completely blue hot - there is almost always some sort of mixture, and usually, the object glows white tinged with blue (which just means that the object is releasing all different levels of energy, but predominantly or mostly blue!)\n\nJust for your interest, the way this works is, when you heat something up, you are exposing it to invisible energy called "infra red" which is just heat. So when you touch something and it feels hot, you are simply sensing infra red energy!\nThis energy is "weaker" than light (so light is actually more energetic than heat), but if you let an object get hot enough, it stops being able to release the heat as just infra red and starts to release it as visible light. The hotter the object gets, the further along the spectrum is the light emitted.\nActually, if the object absorbs enough energy it will start to release Ultra Violet (UV) and X-Rays!
893197
Try a histogram and use a range of temperatures.
83712
http://en.wikipedia.org/wiki/Color\n\nThis might help out.
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".
274231
It depends on the fuel type it is feeding off of. Many different things burn at different temperatures. Structure fires can burn at over 2000 (yes, two thousand) degrees Farenheight. Some metals can burn as hot as 4,000, to 5,000 degrees farenheight.
474892
Fire is not a chemical, so there is no chemical symbol to represent it. However, numerous things burn, and these can be adequately described by a reaction. For example, wood is primarily cellulose: \n(C6H12O6)n + O2 --> H20 + C02 + heat + light\nPS. The above reaction is unbalanced. This is what happens when wood is burned - it turns into water and carbon dioxide. Note that "normal" fire only happens in the presence of oxygen. I say "normal" because there are other types of fire that don't involve oxygen.\nWe don't see any water because it evaporates from the heat of the fire as soon as it is formed. \nThe heat given off is the heat of the fire (obviously). \nThe light produced is what you see as fire.
873405
Flame color depends on several factors. Typically the most important being: blackbody radiation and spectral band emission with both spectral line emission and spectral line absorption playing smaller roles. In the most common type of flame, hydrocarbon flames, the most important factor which determines color is oxygen supply and the extent of fuel oxygen "pre-mixture", which determines the rate of combustion and thus the temperature and reaction paths, different color hues are thereby produced.\n\nIn a laboratory under normal gravity conditions and with a closed oxygen valve, a Bunsen burner burns with yellow flame (also called a safety flame) at around 1,000°C. This is due to incandescence of very fine soot particles which are produced in the flame. With increasing oxygen supply less blackbody-radiating soot is produced due to a more complete combustion and the reaction creates enough energy to excite and ionize gas molecules in the flame, leading to a blue appearance. The spectrum of a premixed (complete combustion) butane flame on the right shows that the blue color arises specifically due to emission of excited molecular radicals in the flame which emit the vast majority of their light well below ~565 nanometers in the blue and green regions of the visible spectrum.
1182331
Fire is a visible sign of combustion - an exothermic oxidation reaction. \n\nExothermic means that it releases energy.  In the case of visible fire (not all "flames" are visible) some of the energy is radiated at frequencies in the visible light waveband.\n\nBTW: color is related to temperature - "red hot" is around 500 C
840456
fire = jul, aug, sep\nair = oct, nov, dec\nearth = jan, feb, mar\nwater = apr, may, jun
280179
Well I could make it as complex and confusing as some but I will keep it simple.  The color of a flame is determined by the material that is burning. The color also denotes temperature of a flame. (yes there are different degrees of hot). Sodium will give a yellow flame. Have a gas stove? Notice the flame has two colors of blue, the inner flame is a different shade than the outer shade, look at a match, the flame closest to the center of flame is yellowish while the outer is reddish. The center is hotter in both flames.\nAdding a chemical to the fire will change color, copper will burn blue, both from chemical and its flame hotter than the average yellow fire.  The quantity of flame or size is why we cant tell the difference in heat from all these small flames and we say they are hot.
621391
Blue flames aren't always hotter than yellow or orange flames according to this website... You should check it out! :)\n\nhttp://van.hep.uiuc.edu/van/qa/section/States_of_Matter_and_Energy/Fire/20030117075106.htm\n\nOhhhhh, this is neat too!\n\nhttp://en.wikipedia.org/wiki/Flame
54695
Fire, as a label, is a variable. \n"n.\n1.a. A rapid, persistent chemical change that releases heat and light and is accompanied by flame, especially the exothermic oxidation of a combustible substance." (1)\n\nTo strip out the longer words, fire is something combining with oxygen rapidly enough to produce heat and to be seen as a flame.\n\nDifferent materials do this at different temperatures. The temperature where a fire starts is called a flash point.\n\n"Flash point is the lowest temperature at which a liquid can form an ignitable\nmixture in ... The fire point is usually a few degrees above the flash point. ..." (2)\n\nHere are some sample *fire points* from Wikipedia:\n"   * Silane: <70°F (21°C)\n    * White phosphorus: 93°F (34°C)\n    * Carbon disulfide: 212°F (100°C)\n    * Gasoline: 495°F (257°C)\n    * Butane: 806°F (430°C)\n    * Magnesium: 883°F (473°C)\n    * Hydrogen: 1060°F (571°C)" (3)\n\nWhere we say "ouch" is our "pain point." (4)\n\nIt's a good idea to keep fingers out of fire, but burning ourselves does not need fire. Flame is not the only factor. I have been burnt by hot roofing tar -- 500 degrees F, but not on fire.\n\nThat's probably more than you wanted to know from this question, but it's been sitting here a couple of hours so I thought I'd essay it.
465006
Fire is not matter. The combustible material is a 'solid' like  wood, but can be a 'liquid' like gasoline. The wood combusts, releasing 'gases' such as Carbon Monoxide and solids such as ash particulates. The "fire" is the energy released in the form of heat and light. That's my simple explanation.
159817
temperature of fire was 900°F to 1200°F\n\nMost volatiles ignite at temperatures ranging from 1000º - 1400º F.\n\ncombusted in the fourth and final state at temperatures in excess of 935°F.
1057509
below 7 is acidic\nabout 7 is neutral\nabove 7 is basic\n\nthe scale ranges from 0 - 14
1045718
Besides light and heat, they actually aren't similar at all. Fire is caused by an exothermic chemical reaction involving oxygen gas. Lightning is caused by electrostatic discharge between the ground and clouds, or between clouds.
944324
Fire is a process of Oxidation.  \n\nIt's temperature is equal to or greater than the Auto-Ignition Point for the fuel substance.  Each Fuel will have it's own unique Auto-Ignition Point.\n\nIt's color is determined by the elements present, and the visual spectrum of thier discharge photons...  Photons are discharge as the electrons jump from high to lower excitation levels, and each element has it's own color signature.\n\nMost fires are orange yellow and white because of the large ammount of Hydrogen in the combustion process of organic (or formerly) material.  Occasionally Red will come out thans to the carbon of the same.\n\nIf you add powered metals to the mix your flame will change color.  Copper makes a pretty green for instance...