water freezing

micky

unread,

Feb 20, 2021, 4:11:16 PM2/20/21

to

IIUC, when water (or anything else) freezes, it emits heat, quite a bit
of heat, and that slows the freezing of the adjacent water. Right?

Dean Hoffman

unread,

Feb 20, 2021, 6:49:51 PM2/20/21

to

On Saturday, February 20, 2021 at 3:11:16 PM UTC-6, micky wrote:
> IIUC, when water (or anything else) freezes, it emits heat, quite a bit
> of heat, and that slows the freezing of the adjacent water. Right?

Ya know, there are some good college basketball games on this afternoon.
West Virginia beat Texas right at the end after being down 15 or 20 points.
Stanford is going to triple overtime with Washington State tied at 76.
<https://www.smithsonianmag.com/smart-news/new-experiment-shows-why-sometimes-hot-water-cools-faster-cold-water-180975543/>

Rod Speed

unread,

Feb 20, 2021, 8:51:57 PM2/20/21

to

micky <NONONO...@fmguy.com> wrote

> IIUC, when water (or anything else) freezes,
> it emits heat, quite a bit of heat,

Yes.

> and that slows the freezing of the adjacent water.

Not necessarily, particularly if the adjacent water is moving.

> Right?

Only half right.

trader_4

unread,

Feb 21, 2021, 3:29:01 PM2/21/21

to

On Saturday, February 20, 2021 at 4:11:16 PM UTC-5, micky wrote:
> IIUC, when water (or anything else) freezes, it emits heat, quite a bit
> of heat, and that slows the freezing of the adjacent water. Right?

What exactly constitutes adjacent water? If it's container of water
put into a freezer it's all cooling down together, some areas will cool
faster than others and freeze first.

Rod Speed

unread,

Feb 21, 2021, 5:42:27 PM2/21/21

to

"trader_4" <tra...@optonline.net> wrote in message
news:ca54b984-ae53-4736...@googlegroups.com...

But the water that is adjacent to the water that does freeze first
will get the latent heat of freezing if the water isnt well stirred.

micky

unread,

Feb 21, 2021, 7:01:42 PM2/21/21

to

In alt.home.repair, on Sun, 21 Feb 2021 12:28:58 -0800 (PST), trader_4

<tra...@optonline.net> wrote:

>On Saturday, February 20, 2021 at 4:11:16 PM UTC-5, micky wrote:
>> IIUC, when water (or anything else) freezes, it emits heat, quite a bit
>> of heat, and that slows the freezing of the adjacent water. Right?
>
>What exactly constitutes adjacent water?

I guess it depends on its mailing address. If one drop is at 3302 Water
Drive and the other drop is at 3304, it's adjacent.

>If it's container of water
>put into a freezer it's all cooling down together, some areas will cool
>faster than others and freeze first.

And what do you think happens when part freezes first? The part that
freezes emits heat, enough heat to significantly warm the water next
door and slow down its freezing. Even if the water is moving, there is
always some water next door, unless of course the landlord hasn't been
able to rent the property.

Dean Hoffman

unread,

Feb 21, 2021, 9:23:26 PM2/21/21

to

I was thinking along the lines of sewage lagoons for livestock operations.
We just as well live in different worlds sometimes.

Bob F

unread,

Feb 21, 2021, 11:03:16 PM2/21/21

to

The heat released does not heat the nearby water. The nearby water
passes it's heat to the colder water, which passes it to the colder
surface that is cooling it. The frozen layer passes more heat through
from the water after it freezes because it's temperature drops, since it
does not have as much energy left to pass to the colder surface.

Rod Speed

unread,

Feb 21, 2021, 11:25:20 PM2/21/21

to

"Bob F" <bobn...@gmail.com> wrote in message
news:s0vadr$5kl$1...@dont-email.me...

> On 2/21/2021 4:01 PM, micky wrote:
>> In alt.home.repair, on Sun, 21 Feb 2021 12:28:58 -0800 (PST), trader_4
>> <tra...@optonline.net> wrote:
>>
>>> On Saturday, February 20, 2021 at 4:11:16 PM UTC-5, micky wrote:
>>>> IIUC, when water (or anything else) freezes, it emits heat, quite a bit
>>>> of heat, and that slows the freezing of the adjacent water. Right?
>>>
>>> What exactly constitutes adjacent water?
>>
>> I guess it depends on its mailing address. If one drop is at 3302 Water
>> Drive and the other drop is at 3304, it's adjacent.
>>
>>> If it's container of water
>>> put into a freezer it's all cooling down together, some areas will cool
>>> faster than others and freeze first.
>>
>> And what do you think happens when part freezes first? The part that
>> freezes emits heat, enough heat to significantly warm the water next
>> door and slow down its freezing. Even if the water is moving, there is
>> always some water next door, unless of course the landlord hasn't been
>> able to rent the property.

> The heat released does not heat the nearby water.

There is nowhere else for the heat to go.

> The nearby water passes it's heat to the colder water, which passes it to
> the colder surface that is cooling it. The frozen layer passes more heat
> through from the water after it freezes because it's temperature drops,
> since it does not have as much energy left to pass to the colder surface.

Utterly mangled all over again.

trader_4

unread,

Feb 22, 2021, 7:13:37 AM2/22/21

to

+1

That's why I asked for clarification on what Micky was talking about,
with "adjacent water" but got a typical response. If we sit a plastic jug
of water on top of a cold refrigeration plate, the bottom of the jug will
freeze first, but it's not heating the water above it.

Tekkie©

unread,

Feb 22, 2021, 3:35:36 PM2/22/21

to

On Sun, 21 Feb 2021 19:01:35 -0500, micky posted for all of us to digest...

Is this what you are referring to? Otherwise known as heat of sublimation?

https://en.wikipedia.org/wiki/Enthalpy_of_sublimation

--
Tekkie

Thomas 'PointedEars' Lahn

unread,

Feb 25, 2021, 5:58:04 PM2/25/21

to

micky wrote:

> IIUC, when water (or anything else) freezes, it emits heat, quite a bit
> of heat, and that slows the freezing of the adjacent water. Right?

No, you have it backwards. Freezing (i.ee. thermal solidification) is the
*consequence* of removing a sufficient amount of heat from a thermodynamic
system.

If you consider each unit volume of the substance as a thermodynamic system
of its own, removing heat from one of those volumes can mean that it goes
into the other instead of into the rest of the environment, preventing the
other from freezing, or causing its freezing process to slow down.

See also:

BBC (1983): “FUN TO IMAGINE” (with Richard Feynman)
<https://www.youtube.com/watch?v=nYg6jzotiAc>

PointedEars
--
“Science is empirical: knowing the answer means nothing;
testing your knowledge means everything.”
—Dr. Lawrence M. Krauss, theoretical physicist,
in “A Universe from Nothing” (2009)

Thomas 'PointedEars' Lahn

unread,

Feb 25, 2021, 5:58:21 PM2/25/21

to

micky wrote:

> IIUC, when water (or anything else) freezes, it emits heat, quite a bit
> of heat, and that slows the freezing of the adjacent water. Right?

No, you have it backwards. Freezing (i.e. thermal solidification) is the