A flame (from Latin flamma) is the visible, gaseous part of a fire. It is caused by a highly exothermic chemical reaction made in a thin zone.[1] When flames are hot enough to have ionized gaseous components of sufficient density, they are then considered plasma.[vague][2]
- ^ Law, C. K. (2006). "Laminar premixed flames". Combustion physics. Cambridge, England: Cambridge University Press. p. 300. ISBN 0-521-87052-6.
- ^ "Do flames contain plasma?". Science Questions with Surprising Answers. Retrieved 26 June 2022.