Is it any different from hot air exhaled from your lungs?
Comment on Do farts at least nominally increase the overall temperature of the room in which they are extruded?
Successful_Try543@feddit.org 14 hours agoExactly, beside one techniallity:
The process of fart mixing into ambient air generates heat.
No, it does not generate heat. It carries a portion of heat from the body and transports it into the ambient air in the room. Almost simultaneously, an equivalent amount of air leaves the room to the outside. The increased heat of the air yields into an increased temperature in the room.
chocrates@piefed.world 10 hours ago
Successful_Try543@feddit.org 5 hours ago
Not much, except the pressure involved is different and flatus contains more methane, carbon oxides and fancy molecules than the air we in- and exhale usually does.
NoneOfUrBusiness@fedia.io 14 hours ago
No no, dissolution does generate heat. It's called heat of solvation.
Eheran@lemmy.world 11 hours ago
This is not happening here. There is no solution, everything is a gas.
NoneOfUrBusiness@fedia.io 8 hours ago
Yeah solutions can have any phase of solute and any phase of solvent. The most common example of a solution of gases is the air, so yeah.
dgdft@lemmy.world 14 hours ago
The act of mixing is an exothermic chemical process that does in fact explicitly generate heat. You can read up here if curious: en.wikipedia.org/…/Enthalpy_change_of_solution
I have a degree in physics and work in biomed R&D. I am a qualified fart scientist — this is what I live for.
CompactFlax@discuss.tchncs.de 13 hours ago
But isn’t there some contribution from the delta in pressure?
dgdft@lemmy.world 12 hours ago
Yeah, you’re right — there would be some cooling from pressure release.
Successful_Try543@feddit.org 14 hours ago
Qualifies mixing of gases as dissolution?
dgdft@lemmy.world 12 hours ago
In a nutshell, the bonds in question are intermolecular forces, not bonds between atoms within a molecule.
Eheran@lemmy.world 11 hours ago
Still not a solution.
Successful_Try543@feddit.org 6 hours ago
Of course. Otherwise this would qualify as a chemical reaction.
I’d totally get it, if were taking about lets say vaporising of perfume or fuel. There, the bonding forces between the molecules of the liquid (van der Waals, H-bridges) are released, and thus stored energy is set free.