Why do unscented candles burn faster than scented ones?
404979
I think it is to do with the chemicals tht the companys use to add scent to candles. Have you ever lit anything that smells (like air freshener, deodorant)? Then you will see that it burns well. The candle is using those chemicles as fuel before    burning the wick. Also the dark one burnt qucker because of all the inks that are in it. Ink doesn't burn well so the colour is using more energy to burn itself.
786406
No. It just wastes more gas, builds up carbon deposits in the cylinders quicker, and tends to make the engine an oil burner.  There are many possible reasons why his is faster, but worse than optimum combustion isn't one of them.
705668
the retention times are longer for everything. The gas flow rate is the only variable decider in the speed of transit through the columns. Slower flow means slower movemnt independent of column interactions\n\nThe separation should theoretically be better for everything besides the components that don't interact at all with the column. They come out at dead/void volume anyway. The other components are better separated because the slower flow rate means they have more time to interact with the stationary phase and so the differences in elution rate become more pronounced.
296306
Blowing moves the reaction area (flame) away from the source of reactants (hot wick).  This not only deprives the flame of needed reactants but prevents thermal feedback from the flame to the wick.  If the flame propagation speed were higher it would be harder to blow out (oxy-acetylene is harder to blow out than a candle.)
955041
We've always used olive oil for that purpose to make a softer candle.\n\nChemically, paraffin is molecularily large alkanes.  The length of the alkane determines its degree fluidity (more accurately, its melting point).  Mineral oil is a purified alkane product that is liquid at room temperature, so it would be most compatible chemically with paraffin and would easily soften it.\n\nMy concern with some of the things that could be added is that it is uncertain what happens to them in the flame.  What sort of toxic substance do they become when burned?
221458
Mostly it's just hydrogen and carbon.  Parafins are polymers of hydrocarbon, much like what is in gasoline, except the chains are much, much longer.  The high molecular weight makes the wax not so volitile (ie it doesn't turn into a gas like gasoline) and the lengths makes the wax burn much more slowly.\n\nIn a regular candle, you'll have other random elements in whatever dyes or perfumes they use to make it comercially appealing, and maybe something to make them stiffer or whatever--but the wax is just hydrocarbon.
333447
Well, a standard "candle" is a defined unit of measurement:\nCandle: An obsolete unit of luminous intensity, originally defined in terms of a wax candle with standard composition and equal to 1.02 candelas\n\nCandela:\nA unit of luminous intensity equal to 1/60 of the luminous intensity per square centimeter of a blackbody radiating at the temperature of solidification of platinum (2,046°K)\n\nSo your torch is about 1 million times brighter than a bit of really hot plantinum!\n\nPresumably, someone has worked out exactly how bright this is, and can also measure how bright your torch is and can work out how much brighter the torch is than the standard "candle"
720124
I think smell travels thru dimensions which would make them pretty fast/and the reason for that belief is they have smells that just seem to creep up on you without no warning\nI think they call it stealth stink and when it happens you look around and nothing is there that could have obviously caused it,So boom its just there....thats definitly faster than a speeding bullet/so there you have it baboomba!JuJu
347655
One produces Crude Oil in liquid form the other produces Natural Gas from underground caverns and such. Infact Natural gas (when mined) has no smell at all. The scent you smell at home is an additive used as a warning. I work in the oil field drilling industry.
1123694
None. We find candles are more soothing and better for the enviroment, and of besides, we bought a cute coffin purse on ebay and our funds are totally drained. Couldn't buy a lightbulb if we wanted to. Maybe we can return the 7 inch heel boots...
834397
Hi there. I have sold Partylite candles for 6 years. May be of some help. We always use the hour for every inch in diameter. If the candle is 3 inches around, let it burn for 3 hours or longer. Do you know how wide? That should help give you an estimated time?!
509360
Probably not.\n\nIt takes a very high temperature to get the colors you are talking about. The temperature of a candle is a lot less than those found in pyrotechnics or a bunsen flame.
935541
THE candle?  any particular one?  If you mean the one on the taller holder, it's the "shamash" or lead candle.  It's the one that does the lighting.  The other candles don't have a name.
131039
Alcohol has a low flash point and burns with a near invisible flame.  It would be easy to start an uncontrolled flame that would be difficult to see.  All of which could lead to disasterous results.
1117190
Five feet per second.\n\nSeriously, it depends on a lot of different conditions.  Smells travel in the air by what's called diffusion. Molecules are always moving, bumping and jostling each other, so they mix. The rate of natural mixing or diffusion depends on how often molecules encounter one another. The same with how long it takes a smell to dissipate. If the wind is blowing, there will be more mixing. That can either make the smell reach you sooner, or it can spread the smell out so that you don't notice it at all. \n\nThe speed with which a smell travels depends on how fast the molecules are going, how massive they are, the relative temperature of the molecules making the smell, and how many molecules there are in a given volume, their density. We express all this mathematically as a gas's temperature and pressure. By the way, our brains are quite used to air, so for the most part, we don't smell oxygen, nitrogen, or carbon dioxide; we smell the other molecules instead.
894596
A regular fire, like in a fireplace or campfire, consists of burning organic material such as wood or other plant material which is mainly made from Carbon, with hydrogen. When the wood burns, the carbon combines with oxygen. It releases a lot of energy that was stored in the chemical bonds of the wood.\n\nAs the wood burns, some of it is very hot, and other parts are not yet hot, are heating up or are being burned loose and carried away by the currents of air moving between the sticks of wood. So the fire is giving off Carbon dioxide, partially burned fractions of the wood, hot ut unburned pieces of the wood, and pieces of wood that are hardly hot at all. In some cases, there will be carbon atoms that are hot but they were in a part of the fire where all the oxygen had been used up, so those atoms may be hot but not burned. \n\nAll these various materials can be glowing with heat. Because they are all different temperatures, they have different colors.  It might be easier to see this in a candle flame than in a fire. \n\nIf you look at the candle flame you see a part where the actual combustion is taking place - that is, where there are carbon atoms actually in the process of combining with oxygen. That area might be quite hot and have no color at all. But there is probably an area above that which is yellow - that's probably unburned carbon atoms which are glowing from heat, but they are cooling off. As they cool off you see an area where they are no longer yellow. If you put a cool piece of glass or metal in that part of the flame, it will collect a coating of the unburned carbon atoms, what we call 'soot'.\n\nPeople have been looking at candles for a long time, trying to understand how the burning process works. So I think you could go all the way back to Michael Faraday in the mid 1800s for a book on candles and flames, and some updated versions on the web.
1118981
Supposedly PH balance. Most likely scents that are added, but to be honest I've used both and really haven't had a lot of differences noticed.