2006-09-09 21:19:32 · 9 answers · asked by vivu 1 in Science & Mathematics ➔ Chemistry
Color tells us about the temperature of a candle flame. The outer core of the candle flame is light blue -- 1670 K (1400 °C). That is the hottest part of the flame. The color inside the flame becomes yellow, orange and finally red. The further you reach to the center of the flame, the lower the temperature will be. The red portion is around 1070 K (800 °C). The reason there is this variation in a candle's flame color is because air convection pulls the warmer gasses upwards.
2006-09-09 23:48:56 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Because on burning a candle lighter combustible gases are released which catch fire.As lighter gases always move upwards the flame goes upwards.
2006-09-10 04:49:24 · answer #2 · answered by DR ARUN 2 · 0⤊ 0⤋
Because cold air is heavier, and fall down underneath the heated air holding the flame in an upright position. Hotter air is less dense.
2006-09-10 04:24:56 · answer #3 · answered by confused1832 2 · 0⤊ 0⤋
Because cold air is heavier, and fall down underneath the heated air holding the flame in an upright position. Hotter air is less dense.
2006-09-10 04:21:45 · answer #4 · answered by teef_au 6 · 0⤊ 0⤋
as the candle lightes up the air surrounding the candle gets heated up.the hot air starts moving up since it is lighter than cold air.so, because of that flame also moves up. this is very spontanies process.
2006-09-10 04:35:58 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Because heat rises and the heat of fire is so intense that it pulls it up and the cold air balances it out. It is the heat around it that makes wax melt (btw) lol
2006-09-10 04:29:41 · answer #6 · answered by Bullz_ eye 6 · 0⤊ 0⤋
It is becase hot air moves upwards.
2006-09-10 04:26:55 · answer #7 · answered by Dolphi 2 · 0⤊ 0⤋
the heated air is less dense. so it moves upward.
2006-09-10 05:14:42 · answer #8 · answered by Anonymous · 0⤊ 0⤋
firstly i dont think you could see it if it went downwards........ anyways it's actually going down... cause like it's melting the wax and thats how the candle goes shorter =D
2006-09-10 04:27:11 · answer #9 · answered by leokrazee 2 · 0⤊ 0⤋