How to make ice...

[TimoJay]

How to make ice... the counterintuitive way. :O

According to this, hot water will freeze more quickly than cold water.. sort of. :rolling:

http://math.ucr.edu/home/baez/physics/General/hot_water.html

Anyway, it's a good example of how little Chemistry 101 teaches you. :bounce:

:imu::imu::imu::bounce::imu::imu::imu:

 

[CyberPitz]

This shit hurts my head. I'll still never be able to fully wrap my head around how that's possible.

 

[Avoidist]

My thermodynamics says no.

Intriguing though.

Edit: Although, now that I think about it, hot water is less dense (not counting the 4 degree minimum) and thus if the same volumes were used there would be fewer mols to freeze, requiring less latent heat to be transferred. I bet that's not the reason though.

 

[Druckles]

It's to do with the rate of cooling. I never believed it, even when it was proven to me . And funnily, it was never mentioned in Chemistry, I believe I learnt it in Maths.

 

[99.vikram]

Hot water accepts heat to become Steam, is that how this works?

 

[Raziaar]

I'll be sure to shower with cold water rather than hot water on a freezing morning. I don't want to turn into an ice cube.

 

[Krynn72]

I know that hot water freezes more clear than cool water.

 

[Raziaar]

I would have thought hot water freezes more cloudy. I mean... hot water is always cloudy compared to cold water when I see it... perhaps that doesn't really translate through to the freezing process.

But if you want really clear ice, you need to continually agitate it during the freezing process.

 

[PriNcE oF SpAcE]

http://www.youtube.com/watch?v=aRwlrFimnZk

better version:

http://www.youtube.com/watch?v=K-GSrrk_ATM&NR=1

 

[Sulkdodds]

That would be an awesome way to attack someone.

 

[Gordon_X]

I'll just buy some at the store, kthx.

 

[Direwolf]

Yeah, its a really weird concept and it only works under very specific conditions. But it does work.

 

[Druckles]

My God, I think I'll move to Canada, just to throw hot water around.

 

[Sedako]

SLIGHTLY RELATED ANECDOTE TIME!!!!! My sister just had a hot water pipe in her house freeze. D: They have to tear up the kitchen they just remodeled to get to it. D: And they have a ten-month-old baby to deal with at the same time. D:

D:

D:

D:

 

[Cpt Tenacious]

To make ice, freeze water.