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Comment on Do farts at least nominally increase the overall temperature of the room in which they are extruded?

Successful_Try543@feddit.org ⁨1⁩ ⁨year⁩ ago

Exactly, 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.

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dgdft@lemmy.world ⁨1⁩ ⁨year⁩ 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.

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- CompactFlax@discuss.tchncs.de ⁨1⁩ ⁨year⁩ ago
  But isn’t there some contribution from the delta in pressure?
  
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  - dgdft@lemmy.world ⁨1⁩ ⁨year⁩ ago
    Yeah, you’re right — there would be some cooling from pressure release.
    
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- Successful_Try543@feddit.org ⁨1⁩ ⁨year⁩ ago
  Qualifies mixing of gases as dissolution?
  
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  - dgdft@lemmy.world ⁨1⁩ ⁨year⁩ ago
    In a nutshell, the bonds in question are intermolecular forces, not bonds between atoms within a molecule.
    
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    Eheran@lemmy.world ⁨1⁩ ⁨year⁩ ago
    Still not a solution.
    
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    Successful_Try543@feddit.org ⁨1⁩ ⁨year⁩ 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.
    
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NoneOfUrBusiness@fedia.io ⁨1⁩ ⁨year⁩ ago
No no, dissolution does generate heat. It's called heat of solvation.

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- Eheran@lemmy.world ⁨1⁩ ⁨year⁩ ago
  This is not happening here. There is no solution, everything is a gas.
  
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  - NoneOfUrBusiness@fedia.io ⁨1⁩ ⁨year⁩ 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.
    
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    Eheran@lemmy.world ⁨1⁩ ⁨year⁩ ago
    No. Gas in gas can not be a solution. The solvent must be a solid or liquid.
    
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chocrates@piefed.world ⁨1⁩ ⁨year⁩ ago
Is it any different from hot air exhaled from your lungs?

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- Successful_Try543@feddit.org ⁨1⁩ ⁨year⁩ 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.
  
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