Thanks for the correction! My first part was still forest though - fire is not plasma.
Comment on Ok sir
Umbrias@beehaw.org 4 months agoFire is much more complex than that. Fires appearance comes from:
- blackbody radiation, as you point out from smoke particles but also from gaseous components
- chemiluminescence, the chemical reaction itself emits light, and this is why fires can burn in different colors. In fact you can buy additives which are generally metals which make fires burn blue or green or red, etc.
Fire is an active chemical reaction. It’s a transition between often solid or liquid, sometimes gaseous, fuels, into gaseous products, all while undergoing a chemical reaction. It’s not a state of matter, states of matter concern the phase of equilibrium conditions, and fire is decidedly not in equilibrium.
JackGreenEarth@lemm.ee 4 months ago
original_reader@lemm.ee 4 months ago
This needs an ELI5 version…
Umbrias@beehaw.org 4 months ago
Hot things glow, some chemical reactions glow, fire does both, mostly the latter especially for cooler fires.