How is some ice colder than others ?

[deftron]

Theres a company around here called City Ice Compny.

The side of their trucks say "The Colder Ice"

The bagged ice they sell, Ice Rounds ,

claims to be 33% colder than regular bagged ice.

How is that possible ?

 

[TallBill]

they pack it in even colder ice.. which cools it down

 

[Beau]

Doesn't say that it's colder, just that it cools faster. Probably has to do with the shape of the chunks of ice, more surface area cooling, less air, etc..

 

[agnitrate]

If there is something in the ice, it could be because of Freezing Point depression. Like how they use salt on snow in the winter to melt it because it makes the solution's freezing point lower and it's not cold enough to freeze it anymore.

It would have to be something edible though and not harmful. I think for snow they use Potassium chloride or something and I'm not sure how safe it is to eat that since I'm not a chemist or anything.

Either that or it's just a BS marketing scheme maybe?

-silver

 

[notfred]

Are you people in elemetanry scool or something??

water, hydrogen monoxide.

let's start with water in a gaseous state, at 500 degrees F. We call this gaseuos form of water "steam".

Now let's begin cooling our water. down to 400 degrees. Still steam. 300 degrees. Still steam.

212 Degrees. Our water condenses into liquid form. I hope you're familiar with this.

200 degrees. Still liquid. 100 degrees. Still liquid.

32 degrees F. Our water freezes solid. We call this "ice".

Continue cooling our water.

0 degrees. It's still ice. -100 degrees. Still ice. -200 degrees. Still ice.

NOTE: the -200 degree ice is colder than th 32 degree ice.

Why? Cause we cooled it off more.

Your question is liek asking "how come some air is hotter than other air?" It's because it was heated more.

 

[Beau]

Originally posted by: notfred
Are you people in elemetanry scool or something??

water, hydrogen monoxide.

let's start with water in a gaseous state, at 500 degrees F. We call this gaseuos form of water "steam".

Now let's begin cooling our water. down to 400 degrees. Still steam. 300 degrees. Still steam.

212 Degrees. Our water condenses into liquid form. I hope you're familiar with this.

200 degrees. Still liquid. 100 degrees. Still liquid.

32 degrees F. Our water freezes solid. We call this "ice".

Continue cooling our water.

0 degrees. It's still ice. -100 degrees. Still ice. -200 degrees. Still ice.

NOTE: the -200 degree ice is colder than th 32 degree ice.

Why? Cause we cooled it off more.

Your question is liek asking "how come some air is hotter than other air?" It's because it was heated more.

Yes, but in order to keep it at that temp, you'd have to have a colder freezer to keep it in, and it will eventually warm to whatever it's environment is. So I still insist that it is not "colder", it just cools faster because of the shape/size of the ice chunks.

 

[TallBill]

Originally posted by: bob970
they pack it in even colder ice.. which cools it down

do i have to repeat it ?

 

[FoBoT]

in reference to notfred's comment ^

actually, if you heat steam above 212F it is referred to as superheating
steam is normally 212F, if you run steam through another process to add more heat, it is "superheating" the steam above 212F

 

[Amused]

Originally posted by: Beau6183

Originally posted by: notfred
Are you people in elemetanry scool or something??

water, hydrogen monoxide.

let's start with water in a gaseous state, at 500 degrees F. We call this gaseuos form of water "steam".

Now let's begin cooling our water. down to 400 degrees. Still steam. 300 degrees. Still steam.

212 Degrees. Our water condenses into liquid form. I hope you're familiar with this.

200 degrees. Still liquid. 100 degrees. Still liquid.

32 degrees F. Our water freezes solid. We call this "ice".

Continue cooling our water.

0 degrees. It's still ice. -100 degrees. Still ice. -200 degrees. Still ice.

NOTE: the -200 degree ice is colder than th 32 degree ice.

Why? Cause we cooled it off more.

Your question is liek asking "how come some air is hotter than other air?" It's because it was heated more.

Yes, but in order to keep it at that temp, you'd have to have a colder freezer to keep it in, and it will eventually warm to whatever it's environment is. So I still insist that it is not "colder", it just cools faster because of the shape/size of the ice chunks.

Bingo. While notfred had a good point, his point falls apart because the ice is going to be stored in individual people's freezers where the company has no control.

I think the company is claiming the round balls of ice have more surface area, and thus cool the surrounding liquid faster.

 

[notfred]

Originally posted by: FoBoT
in reference to notfred's comment ^

actually, if you heat steam above 212F it is referred to as superheating
steam is normally 212F, if you run steam through another process to add more heat, it is "superheating" the steam above 212F

So what? it's still steam. My post just said that gaseous water is called steam.

 

[timmyG]

riiight

 

[rgwalt]

Originally posted by: notfred
Are you people in elemetanry scool or something??

water, hydrogen monoxide.

let's start with water in a gaseous state, at 500 degrees F. We call this gaseuos form of water "steam".

Now let's begin cooling our water. down to 400 degrees. Still steam. 300 degrees. Still steam.

212 Degrees. Our water condenses into liquid form. I hope you're familiar with this.

200 degrees. Still liquid. 100 degrees. Still liquid.

32 degrees F. Our water freezes solid. We call this "ice".

Continue cooling our water.

0 degrees. It's still ice. -100 degrees. Still ice. -200 degrees. Still ice.

NOTE: the -200 degree ice is colder than th 32 degree ice.

Why? Cause we cooled it off more.

Your question is liek asking "how come some air is hotter than other air?" It's because it was heated more.

Sorry, the engineer in me just has to say something.... You forgot to specify the pressure.

Ryan

 

[Beau]

Originally posted by: timmyG
<a class=ftalternatingbarlinklarge href="http://www.vitazing.com/sam/monkeyrobot.jpg" target=blank>riiight</A>

hahahaha

/me saves to hdd

 

[notfred]

Originally posted by: rgwalt

Originally posted by: notfred
Are you people in elemetanry scool or something??

water, hydrogen monoxide.

let's start with water in a gaseous state, at 500 degrees F. We call this gaseuos form of water "steam".

Now let's begin cooling our water. down to 400 degrees. Still steam. 300 degrees. Still steam.

212 Degrees. Our water condenses into liquid form. I hope you're familiar with this.

200 degrees. Still liquid. 100 degrees. Still liquid.

32 degrees F. Our water freezes solid. We call this "ice".

Continue cooling our water.

0 degrees. It's still ice. -100 degrees. Still ice. -200 degrees. Still ice.

NOTE: the -200 degree ice is colder than th 32 degree ice.

Why? Cause we cooled it off more.

Your question is liek asking "how come some air is hotter than other air?" It's because it was heated more.

Sorry, the engineer in me just has to say something.... You forgot to specify the pressure.

Ryan

one standard atmosphere.


Also: A sphere is the object with the LEAST surface area per volume. It would NOT provide more surface area for heat transfer than, say, a cube.

 

[Beau]

Originally posted by: notfred

Originally posted by: rgwalt

Originally posted by: notfred
Are you people in elemetanry scool or something??

water, hydrogen monoxide.

let's start with water in a gaseous state, at 500 degrees F. We call this gaseuos form of water "steam".

Now let's begin cooling our water. down to 400 degrees. Still steam. 300 degrees. Still steam.

212 Degrees. Our water condenses into liquid form. I hope you're familiar with this.

200 degrees. Still liquid. 100 degrees. Still liquid.

32 degrees F. Our water freezes solid. We call this "ice".

Continue cooling our water.

0 degrees. It's still ice. -100 degrees. Still ice. -200 degrees. Still ice.

NOTE: the -200 degree ice is colder than th 32 degree ice.

Why? Cause we cooled it off more.

Your question is liek asking "how come some air is hotter than other air?" It's because it was heated more.

Sorry, the engineer in me just has to say something.... You forgot to specify the pressure.

Ryan

one standard atmosphere.


Also: A sphere is the object with the LEAST surface area per volume. It would NOT provide more surface area for heat transfer than, say, a cube.

Per volume, but when packed around an object, it offers the tighest surounding.

 

[Peetoeng]

We found it does cool ice faster...
Cools 33% faster than traditional bagged ice (from the ice bag's logo)

That's what they observed purportedly--it makes ice faster. Perhaps, it really is colder because for the same amount of cooling time to make ice cubes, the round ice would reach colder temperature due to faster heat loss. Note that we are talking about commercial freezer, they may use colder freezer for icemaking to reduce time, and then shift the ice to different freezer for distribution. So the ice would not necessarily reach the freezer temperature as in ice in your freezer which stays for days.

 

[coder1]

Seems like the smaller the ice particle the less air pockets, thus better surface area around the object being kept cold.

 

[pyonir]

Originally posted by: notfred
Are you people in elemetanry scool or something??

i know nothing of this chemistry, but i do know how to spell ELEMENTARY.

 

[Shelly21]

Originally posted by: pyonir

Originally posted by: notfred
Are you people in elemetanry scool or something??

i know nothing of this chemistry, but i do know how to spell ELEMENTARY.

Hmmm... what word kids use for this now..... oh yeah..... link