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Is the tip of the flame hotter or colder than the base or origin of the flame? So basically, which one is hotter on a gas stove?
Question Date: 2005-09-22
Answer 1:

The temperature is highest at the edges of the reaction region where oxygen is more abundant (since air in the room is 21% by volume of oxygen). Thinking about the gas stove, it is on the tip of the flame where oxygen is more abundant.

Blue flames come from very hot, complete burning of air and fuel. Orange color comes from cooler spots in the flame where fuel isn't being totally burned.

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