water freezing
 

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?

water freezing
 

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/

water freezing
 

micky 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.

water freezing
 

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.

water freezing
 

"trader_4" wrote in message
...
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.

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.

water freezing
 

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

water freezing
 

On Sunday, February 21, 2021 at 6:01:42 PM UTC-6, micky wrote:
In alt.home.repair, on Sun, 21 Feb 2021 12:28:58 -0800 (PST), trader_4
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.
I was thinking along the lines of sewage lagoons for livestock operations.
We just as well live in different worlds sometimes.

water freezing
 

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
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. 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.

water freezing
 

"Bob F" wrote in message
...
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
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.

water freezing
 

On Sunday, February 21, 2021 at 11:03:16 PM UTC-5, Bob F wrote:
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
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. 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.

+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.

water freezing
 

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


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

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

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

--
Tekkie

water freezing
 

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): €œFUN TO IMAGINE€� (with Richard Feynman)
https://www.youtube.com/watch?v=nYg6jzotiAc


PointedEars
--
€œScience is empirical: knowing the answer means nothing;
testing your knowledge means everything.€�
€”Dr. Lawrence M. Krauss, theoretical physicist,
in €œA Universe from Nothing€� (2009)

water freezing
 

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
*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): €œFUN TO IMAGINE€� (with Richard Feynman)
https://www.youtube.com/watch?v=nYg6jzotiAc


PointedEars
--
€œScience is empirical: knowing the answer means nothing;
testing your knowledge means everything.€�
€”Dr. Lawrence M. Krauss, theoretical physicist,
in €œA Universe from Nothing€� (2009)