this post was submitted on 08 Nov 2024
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chapotraphouse

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[–] [email protected] 26 points 6 days ago (1 children)

Its from evaporation, bernoulli got shit to do with it doggirl-smart

[–] [email protected] 7 points 6 days ago* (last edited 6 days ago)

Adiabatic expansion would contribute to some of the heat loss but you're right that most of it is from evaporation - compressed air cans aren't literally atmospheric air that's been compressed.

[–] [email protected] 21 points 6 days ago (4 children)

PV = nRT and I ain't got anything else to say about that.

[–] [email protected] 12 points 6 days ago (1 children)
[–] [email protected] 13 points 6 days ago

No, but Benoît Paul Émile Clapeyron did

[–] [email protected] 10 points 6 days ago

None of these words are in the Bible

[–] [email protected] 9 points 6 days ago

hehe you said pivnert

[–] [email protected] 11 points 6 days ago (3 children)

Wait, is that not safe to do?

[–] [email protected] 10 points 6 days ago (1 children)

I mean you shouldn’t be holding the sprayer down no matter what. You shouldn’t be doing short bursts and moving it quickly like a spray paint can. And when it gets cold shake it a bunch and wait for it to heat up. If you can see the refrigerant coming out then it’s too cold and you need to stop.

[–] [email protected] 4 points 6 days ago

Fuck you, I won't stop

[–] [email protected] 8 points 6 days ago (1 children)

Just be careful not to aim it at capacitors because they might clip off. Also just wait for the bottle to warm up when it gets cold, don't remember why, I just remember it says on the can

[–] [email protected] 7 points 6 days ago

Can cause frost burn, some of the mechanical properties on the can can also change with temperature.

[–] [email protected] 6 points 6 days ago

It's safe (as long as you don't hold the bottle upside down or breathe it all) shit just gets cold

[–] [email protected] 11 points 6 days ago

It's the fun part of making your own fizzy water

[–] [email protected] 10 points 6 days ago

Bernoulli Sanders

[–] [email protected] 9 points 6 days ago

Yeah I read theory.

[–] [email protected] 9 points 6 days ago

You're all fuckin' nerds penguin-love

[–] [email protected] 6 points 6 days ago

It's been a while since thermodynamics, but it's because of adiabatic expansion of the air. Basically the same thing happens when you blow, the air becomes cooler when it expands outside your mouth