Comment on Do farts at least nominally increase the overall temperature of the room in which they are extruded?
Successful_Try543@feddit.org 7 months 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.
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.
But isn’t there some contribution from the delta in pressure?
Yeah, you’re right — there would be some cooling from pressure release.
Qualifies mixing of gases as dissolution?
In a nutshell, the bonds in question are intermolecular forces, not bonds between atoms within a molecule.
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.
No no, dissolution does generate heat. It's called heat of solvation.
This is not happening here. There is no solution, everything is a gas.
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.
No. Gas in gas can not be a solution. The solvent must be a solid or liquid.
chocrates@piefed.world 7 months ago
Is it any different from hot air exhaled from your lungs?
Successful_Try543@feddit.org 7 months 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.