/sci/ - Science & Math

[Anonymous No.11729681]

Which type of water will hold more coldness, super salty or distilled? Basically I'm comparing like if you freeze a brick of wood and a brick of steel, steel will be cold for much longer and stronger. I'm doing cold training and I want to freeze a plastic bottle of water so I'm thinking which water to use.

[Anonymous No.11729684]

>>11729681
yo am thinking salty

[Anonymous No.11729689]

>>11729681
It’s been awhile since I’ve taken chem, but wouldn’t fresh water have a higher specific heat than saltwater, and therefore pull more heat out of a system when cooled?

[Anonymous No.11729942]

C'mon /sci/, is it really a mystery?

[Anonymous No.11729949]

>>11729681
is coffee good or bad for you?

[Anonymous No.11730022]

Ok nigger bing specific heat capacity and thermal conductivity for whatever material if you want to be this autistic for your cold training larp, thermal conductivity is the important bit and will determine how cold something feels at a certain temperature and specific heat capacity will determine how long you can go without having to chill the material again, higher is better for both. You will find that salty water has slightly higher thermal conductivity but why be this autistic about it, why not just fill a tub with cold water and ice?

[Anonymous No.11730033]

>>11730022
take your meds schizo

[Anonymous No.11730037]

>>11730033
Completely uncalled for and contributes nothing to the discussion you dumb tranny

[Anonymous No.11730097]

>>11729949
this is a cute anime girl and not some thot

[Anonymous No.11730098]

>>11730022
the saltwater will be more dense than the freshwater, gotta factor that in as well

[Anonymous No.11730101]

>>11729949
newfag detected

[Anonymous No.11730108]

>>11729681
pure water has a higher heat capacity

[Anonymous No.11730181]

Heat capacity is one part of the answer to OP's question, but if he is going to actually freeze it into ice,we also have to look at the heat of fusion. Maybe also the melting point, since it will spend some time stuck at that temperature. I know adding salt lowers the melting point, but I don't have a clue about the heat of fusion.

[Anonymous No.11730208]

OP here, it's been 24 hours and my super salty (I put so much salt in boiling water I had to filter it afterwards) bottle hasn't turned into ice yet, not even slightly. Wtf?
>>11730022
It's much more convenient to just take in and out a bottle.
>>11729949
Retard

[Anonymous No.11730216]

>>11730208
yeah, your freezer is probably not cold enough to freeze salt water

[Anonymous No.11730232]

>>11730208
Salt water freezes at -21 C, good luck.

[Anonymous No.11730239]

>>11730232
Damn, but is it a good for my intentions or bad? Should I make it slightly salty? Btw, what about alcohol? If I freeze vodka for example.

[Anonymous No.11730242]

>>11730239
>if I freeze vodka
if you cannot freeze salt water you absolutely will not be able to freeze vodka, anon

[Anonymous No.11730275]

heres a little known fact I like to spread with the world whenever we talk about ice and cold things. So one of America's first millionairs was some dude that cut blocks of ice out of some frozen lake and sold those blocks of ice all around the world (as far as india). The transport? Literally just a wooden ship, imagine how long the journey took, hot tropical weather, ice dumped in some cargo bay. half year travels, sold in india. how bout that anon.

[Anonymous No.11730306]

>>11729681
Normal. At a plastic bottle size you will gain ZERO (0) benefit of any approach. Just freeze a bottle of water retard.

[Anonymous No.11730660]

>>11730306
Look, if I'm going to do something everyday I want it to be most efficient

[Anonymous No.11732529]

>>11730660
okay so i'm thinking with you. I'd say download CES software (basically a database of materials). Look for materials with a high heat capacity (Cp) and a high (thermal) conductivity λ. Cp measured the amount of heat that it takes to make the temp of a material rise by a given amount. λ measures the rate heat flows through the material when one side is hot and the other cold.
heat flows from hot to cold, something will feel cold to you when its thermal conductivity is high, you lose heat fast trough the material, losing heat = cold. Think of it as heat being water and the material being a sponge or something. So next thing you want is for the material to be able to succ heat for as long as possible untill you have to cool it again, hence the high Cp. Buy the material and put it in the freezer. Let me know if you've found anything.. read up on how exactly thermal conductivity relates to coldness, maybe you want this to be at a medium or something, or the sameish as water. λ you definitively want to pump up to the max.

While text always sounds confident, I have no actual practical experience with picking/finding the right engineering materials, this literally week 1 materialscience theory.

[Anonymous No.11733142]

I WANT TO LICK AND SMELL SHAMIKO'S THIGHS

[Anonymous No.11733195]

>>11729942
no it's not but you dumbfucks aren't going listen to the correct answer anyway
Look up specific heat capacity for fresh and saline water yourself instead of demanding to be spoonfed then fuck off

[Anonymous No.11733329]

Just checked the super salty bottle and it has started to turn icy a little, the bottle is cold as fuck. Guess this answers my question, if it's this cold now it will be even stronger in a day or two. Salt won.

[Anonymous No.11733472]

>>11733329
It will never get colder than your freezer and it won't take another day or two to get to that temperature.

[Anonymous No.11733484]

>>11733472
Look, I'm a brainlet but my logic tells me if it took so much time to freeze then it will melt at much lower temperature than normal water.

[Anonymous No.11733491]

>>11730239
if you freeze vodka and drink it it will make cool crystals

[Anonymous No.11733500]

>>11733491
What about salty vodka?

[Anonymous No.11733567]

>>11733142
we all do anon, we all do...

[Anonymous No.11733965]

>>11733142
tail > horns >>> thighs

[Anonymous No.11734215]

>>11733484
I know yuo are brainlet anon that is why I am here to help yuo I am helper but yuo must listen.

[Anonymous No.11734329]

>>11734215
I'm all ears, which water is it then?

[Anonymous No.11734339]

>>11734329
tap water

[Anonymous No.11734360]

>>11734339
Ok, but why? Tap water is nether distilled nor salty, what makes it more powerful?

[Anonymous No.11734369]

>>11734360
it has the perfect combination of good material properties and the fact that it literally comes out of a hose on demand in near-infinite quantities

[Anonymous No.11734375]

>>11734360
The power lies in the memory retained by the water. Water that comes from natural sources without disturbance acted upon it by feeble humans is naturally stronger.

[Anonymous No.11734413]

>>11729681
>Basically I'm comparing like if you freeze a brick of wood and a brick of steel, steel will be cold for much longer and stronger.

I don't think this is right. Steel has high thermal conductivity, so it will change temperature quickly in response to applied heat or cold. This will also make it FEEL hotter or colder to the touch - the thermal energy will move out of the steel and into your hand more quickly. But the wood would take longer to reach the temperature of the freezer, and would work better for keeping stuff cool inside a sealed container.

[Anonymous No.11734439]

>>11734413
Have you seen anyone freeze his tongue to a piece of wood?

[Anonymous No.11734524]

>>11729681
The words you are looking for are thermal mass or volumetric heat capacity.

[Anonymous No.11736464]

>>11729681
I thought you were one of those brainy demons

[Anonymous No.11736578]

>>11736464

[Anonymous No.11738467]

>>11734439
>Have you seen anyone freeze his tongue to a piece of wood?

High thermal conductivity means that the metal will change its surroundings quickly - but also equalize to those surroundings quickly. If you froze your tongue to a coin, it would thaw quickly and release. Doing this to a wood chip would take longer to both freeze and thaw.

[Anonymous No.11738715]

>>11738467
I've had my hands freeze to ice when I was grabbing it out of the freezer

[Anonymous No.11739373]

>>11729949
Like all things, it's "fine" in infrequent moderation

[Anonymous No.11740407]

>>11738715
>I've had my hands freeze to ice when I was grabbing it out of the freezer

Me too. I'm not sure where you are going with this.

[Anonymous No.11741734]

>>11739373
There definitely is a lot things that are not fine regardless of frequency.

[Anonymous No.11741740]

>>11729681
>will hold more coldness
clarify please

[Anonymous No.11741758]

>>11740407
ice has poor thermal conductivity
>>11741740
you fucking heard him

[Anonymous No.11741790]

>>11739373
Ok same thing about air then nigger, or zyklon gas? Empty words by empty minds.

[Anonymous No.11742452]

>>11741758
>ice has poor thermal conductivity

Only when it is frozen. When it melts in your drink, a little water will go a long way. Ice is MORE likely to stick to your fingers if it is around 20°f then if it is at -10°f or below.

[Anonymous No.11742521]

>>11729681
>will hold more coldness
that's the opposite of how it works.

>if you freeze a brick of wood and a brick of steel, steel will be cold for much longer
that's literally the opposite of true, metals are better conductors of heat(lose heat faster) than something like wood(stays cold longer.)
The metal will feel colder because it absorbs heat from your skin faster.

>I'm doing cold training
stop being a fucking chuuni