Where is the hottest part of a candle flame and why?
The hottest parts of a candle flame are actually the blue, almost invisible area near the base, where oxygen is drawn in, and the blue/white part around the edge, where the flame meets the oxygen-rich air all around it. The flame gets progressively cooler as you move in from the outside edge toward the wick.
Color also tells us about the temperature of a candle flame. The inner core of the candle flame is light blue, with a temperature of around 1800 K (1500 °C). That is the hottest part of the flame. The color inside the flame becomes yellow, orange, and finally red.
- The inner core of the candle flame is light blue, with a temperature of around 1800 K (1500 °C). That is the hottest part of the flame. The color inside the flame becomes yellow,orange, and finally red.
- Cool flame. Cool flame is a flame having maximal temperature below about 400 °C (752 °F). It is usually produced in a chemical reaction of a certain fuel-air mixture.
- The hottest thing that we know of (and have seen) is actually a lot closer than you might think. It's right here on Earth at the Large Hadron Collider (LHC). When they smash gold particles together, for a split second, the temperature reaches 7.2 trillion degrees Fahrenheit. That's hotter than a supernova explosion.
Determining the hottest part of the Bunsen burner using a paper clip and match. Notice that the paperclip glows red hot at the top of the inner cone of the flame, At the bottom of the Bunsen burner it is much cooler.
- Air hole closed. A yellow flame is produced, which transfers less heat energy than the blue flame. The yellow flame is brighter than the blue flame because the specks of carbon glow when heated.
- As soon as the gas tap is open place your lighted match about five centimetres directly above it. The Bunsen will light to give a yellow safety flame. A lighted Bunsen Burner with its air holes closed giving a yellow safety flame. The more the air holes are open, the more fierce the Bunsen flame.
- air hole closed (safety flame used for lighting or default), 2. air hole slightly open, 3. air hole half-open, 4. air hole fully open (roaring blue flame).
Note that a blue propane flame is hotter than a yellow one, but this is just due to efficient combustion, and the difference is likely in the hundreds of degrees Kelvin, not thousands. White fire might be something extremely hot, but it's more likely a mixture of several emission spectra.
- Science. Fire is hot because thermal energy (heat) is released when chemical bonds are broken and formed during a combustion reaction. Combustion turns fuel and oxygen into carbon dioxide and water. Both light and heat are released as energy.
- Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over. Generally, the color of a flame may be red, orange, blue, yellow, or white, and is dominated by blackbody radiation from soot and steam.
- Yep, the answer is a bolt of lightning, which can reach temperatures of roughly 30,000 kelvins (53,540 degrees Fahrenheit). The sun, on the other hand, is eclipsed in this case - its surface temperature is just 6,000 kelvins (10,340 degrees Fahrenheit).
Updated: 21st November 2019