[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]

2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

File: 3 KB, 170x170, qwerqwer.jpg [View same] [iqdb] [saucenao] [google]
[ERROR]

Anonymous Sun Aug 21 22:21:22 2011 No.3605343 [Reply] [Original]

Just realized something when I went into the kitchen get a nice glass of Coke and want /sci/ to seriously answer me this question.

It's hot over here so I get a fresh glass of coke with icecubes, but why does it after some time gets the dry glass so wet from the outside?

Yeah I know it's probably a realy stupid question for you all, but I never got Chemical or Science classes in my entire life, since what I always wanted to be was a programer and also got into it at university, but I was always fascinated by maths, science and the universe, but never got too deep into it by learning formulas and all kind of stuff you guys do.

Always was interested in knowing why this happens when getting a glass of coke, thank you

>>	Anonymous Sun Aug 21 22:22:22 2011 No.3605351 the moisture in the air around the glass condenses because of the cold glass of coke

>>	小白 !!RlhtPr81xr7 Sun Aug 21 22:22:22 2011 No.3605349 Condensation. Google it, i gave you a direction.

>>	Anonymous Sun Aug 21 22:31:22 2011 No.3605398 I feel stupid now. I knew what condensation was but never related it to the glass, damn

>>	Anonymous Sun Aug 21 22:34:22 2011 No.3605419 >>3605349 Now let's say it together, con-den-sa-tion good job!

>>	Anonymous Sun Aug 21 23:09:22 2011 No.3605582 >>3605419 smug fucks now have to explain how condensation works without referencing wikipedia

Anonymous Sun Aug 21 23:13:22 2011 No.3605605

>>3605582

Well, air is made of many kinds of molecules, some of which are water.
When the ice cools the glass, the glass continues cooling the surrounding air, as it is not a closed system. When the temperature of the surrounding air has been reduced to bring the water molecules down to their "boiling point" (the point where water molecules turn to gas from a liquid, or to a liquid from a gas) then the water droplets begin to form on the side of the glass, from the water molecules in the air.

>>	lol op Anonymous Sun Aug 21 23:14:22 2011 No.3605609 >>3605582 Air cools, forms water vapour, the vapour attracts, CONDENSES and forms water droplets.

>>	Anonymous Sun Aug 21 23:20:22 2011 No.3605634 File: 13 KB, 268x311, 1309115066597.jpg [View same] [iqdb] [saucenao] [google] >>3605343 >I was always fascinated by maths, science and the universe >LOL WHY IS MY GLASS WET ON THE OUTSIDE???!!!1!

Anonymous Sun Aug 21 23:37:22 2011 No.3605693

Listen here, op

Glass containers, like the one in your picture, are designed to allow liquids to "breath"

Tiny pores are manufactured into the glass to permit airflow, preventing the fluid from becoming stagnant. These same pores allow limited amounts of fluid to "seep through"

This explains the "wetness" you observe on the outside of the glass which misinformed people mistakenly attribute to condensation.

>>	Anonymous Sun Aug 21 23:41:22 2011 No.3605701 File: 5 KB, 251x168, 1296007665438.jpg [View same] [iqdb] [saucenao] [google] >>3605693 That's right.

>>	Anonymous Sun Aug 21 23:41:22 2011 No.3605702 >>3605693 > > THIS OP. Those condensation fags are the same who think airplanes produce chemtrails which will kill us.

>>	Anonymous Sun Aug 21 23:41:22 2011 No.3605703 >>3605693 this anon's got it right

>>	Anonymous Sun Aug 21 23:45:22 2011 No.3605720 >>3605693 can you explain why it doesn't work with hot liquids?

>>	Anonymous Sun Aug 21 23:46:22 2011 No.3605727 >>3605720 heat rises, duh.

>>	Anonymous Sun Aug 21 23:48:22 2011 No.3605732 File: 57 KB, 354x670, karg (3).jpg [View same] [iqdb] [saucenao] [google] >>3605634

>>	Anonymous Sun Aug 21 23:49:22 2011 No.3605737 Water is actually solidified coldness. They used to think that there was a gas called "cholera" that was evaporated hotness, but it turns out to be the other way around.

>>	Anonymous Sun Aug 21 23:56:22 2011 No.3605754 Clearly the OP didn't go to elementary school, middle school, OR high school. Or kindergarten. Condensation. Look it up. Nice trolling though <3

>>	Anonymous Sun Aug 21 23:57:22 2011 No.3605759 >>3605693 never heard this, source? how come this doesn't happen with room temperature glasses?

>>	Anonymous Sun Aug 21 23:57:22 2011 No.3605765 >>3605759 density changes.

>>	Anonymous Sun Aug 21 23:59:22 2011 No.3605769 >>3605759 Things are smaller when they're cold, especially molecules.

>>	Anonymous Sun Aug 21 23:59:22 2011 No.3605770 >OP has never heard of condensation I refuse to believe someone is actually that ignorant. This thread MUST be a troll, for the sake of humanity.

>>	Anonymous Mon Aug 22 00:01:22 2011 No.3605774 >>3605770 He is learning a thing or two about condescension.

>>	Anonymous Mon Aug 22 00:01:22 2011 No.3605775 >>3605770 condensation is just as tinfoil hattery as chemtrails, stop fucking trolling OP.

>>	Fast paced tempos !!TMq6FoEFyM2 Mon Aug 22 00:03:22 2011 No.3605780 >>3605693 Seriously, what did I just read?

>>	Anonymous Mon Aug 22 00:08:22 2011 No.3605798 >>3605765 >>3605769 Source then?

>>	Anonymous Mon Aug 22 00:08:22 2011 No.3605797 >>3605780 The truth that refuse to teach in school for fear of upseting the technocracy.

>>	Anonymous Mon Aug 22 00:27:22 2011 No.3605849 when temperature falls, waters shifts from vapor to liquid(water), and if it falls far enough from liquid to solid (ice) your glass is cold, so vapor from the air is sticking on the side, and turning into water.

Anonymous Mon Aug 22 01:19:22 2011 No.3606030

>>3605582
>>3605605
>>3605849

lol smug fucks aren't as smart as they think they are. Just because you know something is called "condensation" and OP didn't know that was called "condensation" doesn't mean you are smart. Water vapor -> liquid water is NOT a phase change, and is nowhere near its boiling point.

The air has a certain humidity, which is a % explaining how close the system is to saturation. Upon reaching 100%, liquid water literally falls out of the system. Near the glass, the air is cooler, and cooler air can't hold as much water, i.e. it is more easily saturated. Therefore, liquid water "falls out" of the air and appears on the sides of the glass. This is condensation.

>>	Anonymous Mon Aug 22 01:21:22 2011 No.3606038 >>3606030 see also "dew point" - the same effect. Humid air cools at night, can't hold as much water, and so in the morning there is dew on the grass.

>>	Anonymous Mon Aug 22 01:24:22 2011 No.3606044 >>3605343 Glass is cold. Air has water in it. Water forms droplets when its cold. Extrapolate from here. If you want a more rigorous answer google PV = nkT (or PV=NRT if you want the 'for dummies' version)

>>	Anonymous Mon Aug 22 01:35:22 2011 No.3606067 >>3606044 >(or PV=NRT if you want the 'for dummies' version) Why do they do this?

sexualanswerbot Mon Aug 22 01:42:22 2011 No.3606082

>>3606044

>Glass is cold

- Glass is cold 'er than the water molecules as a gas.

>Water forms droplets when cold

- Imagine a water molecule flying throughout the air, because it is moving at a high speed. The glass has molecules that are still moving, but very slowly... a lot more slowly than the water molecules in the air. Every so often you get this high speed water molecule that smashes into a glass molecule and transfers enough of it's energy into the glass to prevent the water molecule from escaping and for hydrogen bonds to glue itself onto the wall of glass. This happens continuously until large pockets of water form, we call them droplets.

Thought I'd touch up this anon's vagues answers.

Anonymous Mon Aug 22 02:04:22 2011 No.3606102

What op said:
>I know it's probably a realy stupid question for you all
>I feel stupid now.
What all of you said:
>LOL WHAT A MORON HE DIDN'T KNOW THAT, LET'S LAUGH FOR ETERNITY

I hope no one here is an actual professor, must be harsh for the students.

>>	Anonymous Mon Aug 22 02:09:22 2011 No.3606108 >>3606030 >implying the air has water in it Don't listen to these trolls, if air had water in it we would all drown.

>>	Anonymous Mon Aug 22 02:09:22 2011 No.3606109 >>3606067 Wouldn't know, you'd have to ask a chemist. All I know is they call their little toy equation a 'law' with no justification whatsoever and then use it like its gospel. Disgusting.

Anonymous Mon Aug 22 02:15:22 2011 No.3606119

OP has never heard of a "cold sweat"

Cold sweats are caused from lack of oxygen. By displacing the oxygen rich air inside the glass with coke, you're depriving the glass of oxygen and causing it to go into a cold sweat. Other causes of cold sweats are hypoglycemia(low blood sugar), which explains why diet soda causes the glass to sweat more than regular.

>>	Anonymous Mon Aug 22 02:23:22 2011 No.3606134 File: 23 KB, 387x313, kimjil.jpg [View same] [iqdb] [saucenao] [google] >>3606119

>>	Anonymous Mon Aug 22 02:35:22 2011 No.3606154 File: 499 KB, 850x480, 3aG.png [View same] [iqdb] [saucenao] [google] >>3606119 wat

Anonymous Mon Aug 22 02:35:22 2011 No.3606155

Ok OP listen up, gonna try to explain this so your ignorant ass can understand:

There is water in the air right now. Cold air can hold less water than hot air. When the air touches your cold glass it cools. It cools so much that it can no longer hold the water that's in it. So the water "condenses" out. It goes from being in the air as a gas to on your glass as liquid.

>>	Anonymous Mon Aug 22 02:38:22 2011 No.3606157 >>3606155 wait, if there's water in air, why can't you breath underwater?

>>	Anonymous Mon Aug 22 02:41:22 2011 No.3606161 >>3606157 Not enough free oxygen. Also there's a difference between a little moisture and way too fucking much moisture.

>>	Anonymous Mon Aug 22 02:42:22 2011 No.3606165 >>3606157 there is also air in water omg liberal media suppresses proud strong mermen

>>	Anonymous Mon Aug 22 02:43:22 2011 No.3606168 >>3606161 Shouldn't there be even MORE oxygen in water? H-2-0 motherfucker, and the O stands for oxygen

>>	Anonymous Mon Aug 22 02:46:22 2011 No.3606173 File: 1.15 MB, 1220x1080, trolling-in-460p.png [View same] [iqdb] [saucenao] [google] >>3606168 >>3606168

>>	Anonymous Mon Aug 22 02:46:22 2011 No.3606174 NO LISTEN HERE OP. Water forms on the outside of the glass because it is a sign that Cthulhu is sweating. Always wondered why Coke is so dark? Because Cthulhu. Alternatively, lemons.

>>	Anonymous Mon Aug 22 02:52:22 2011 No.3606181 OP died of old age years ago, bro.

Advanced search
Text to find
Subject [?]Search by post subject. Leave empty for any.
Username [?]Search for user name. Leave empty for any user name.
Tripcode [?]Search for tripcode. Leave empty for any.
Email [?]Search by email. Leave empty for any.
Filename [?]Search by image filename. Leave empty for any.
From Date [?]Enter what date to start searching from. Format is YYYY-MM-DD
To Date [?]Enter what date to start searching until. Format is YYYY-MM-DD
Image hash
Search in	All Posts OPs Only
Deleted posts	Show all posts Show only deleted posts Only show non-deleted posts
Internal posts	Show all posts Show only internal posts Show only archived posts
Order	New posts first Old posts first
Capcode	All Posts Only by Users Only by Mods Only by Admins Only by Developers
Results	Posts Threads
Action	[ Simple ]