Friday, February 24, 2012

What Happens to Boiling Water at -22? - Video

By Miss Thomas


http://www.weather.com/weather/videos/news-41/top-stories-169/what-happens-to-boiling-water-at--22-19419

redfishbluefish.net

10 comments:

Cypress said...

Wow! That is so cool. I wonder why it does this. I didn't quite catch it in the video. I can't believe that boiling water can turn to mist if you throw it in the air and it is cold outside. And why is it that in the cup it stays liquid? This was a really interesting post.

Amanda said...

Huh... This was very weird yet cool at the same time. I think that if I had thought of the idea of doing this, I would have predicted that it would evaporate in the air. I think it is because there is more cold air then hot water. This was really interesting but cool at the same time.

Will said...

I believe the reason for the evaporation is that when the water is thrown, the heated particles disperse causing them to lose their cold resistance. Once they lose that, they are open to the lower-than-freezing temperatures to immediately turn the water into ice crystals.

Sofia said...

This is very cool. The hot water might stay as a liquid in the cup because it is together, kind of like when penguins are together, they don't freeze to death. The hot water might of turned into mist when tossed into the air because they weren't that together, if that makes sense. That would kind of be like a solitude penguin that would freeze to death.

Ben said...

That is so cool! When the water is thrown out of the pitcher, it just evaporates into mist.... why doesn't it freeze? I would imagine that that when a boiling liquid is thrown out of a pitcher in bellow freezing tempertures, it would freeze.

I did some research... it turns out that there is something called the mpenba effect where warmer water freezes faster than cold water. Maybe this has something to do with nitrogen particles in ice, like dry ice. Could it possibly be an extaordinarliy fast reaction of freezing into ice and ten evaporating.

Anthony said...

Wow! That video will really interesting! I expected the boiling water to just evaporate, but instead in turned into "instant fog" I thought that the reason the warm water didn't freeze was because since the water was already really warm, it would take a while to cool down. Instead, as Ben said, the mpemba effect makes the warm water freeze faster than the cold air. I like this video because it was cool and a good way to learn about science.

Ava D. said...

That was so cool! I never really thought about what would happen if we did that. I guess that that would work because the air is boiling and it has not been exposed to the cold yet, so it would turn into mist and all evaporate, but I don't know why it wouldn't freeze yet. Probably because the water hasn't been exposed to the air long enough to freeze.

Gwen said...

This is so cool! I think that the water instantly evaporates because it's caught in the struggle between freezing and keeping it's boiling temperature, and it turns into a fog-like cloud. This is probably because the molecules are heated and vibrating like crazy, and the exposure to the cold plus the fact that the molecules are not in one container anymore, makes them vibrate even faster, and evaporate.

Jordan said...

I think this is really cool. I agree with what Sofia said, when the water's all bundled up, and still, it wont freeze. I wish we could do this experiment. Stupid L.A.!

Emma said...

Wow, it is so interesting that the water just immediately turns into that half-mist kind of thing. I know that there is probably some kind of science to why and how it does that, but I also think that it is cool that it happens so quickly. It just immediately evaporates. You know when you get in the car in the morning after a cold night, and there is a kind of, sheet of dew on the window because the car was warm, and the air was cold? I think it is kind of like that, except it happens much quicker, and it doesn't have a flat surface to settle on, so it kind of just floats in the air.