i just bought an ice cold bottle of 7 up. at first it was cold but not in a solid nor liquid-solid state but just plain liquid state. the moment, i opened it, the 7 up started freezing from top to bottom and it felt like slurpee when i drank it. howd this happen?
2006-07-22 08:10:28 · 9 answers · asked by Jigz 2 in Science & Mathematics ➔ Physics
im a 100% sure it was liquid BEFORE i opened it
2006-07-22 08:16:39 · update #1
It was the sudden drop in pressure.
A liquid under pressure will have a lower freezing point (that is why the bottom of the ocean is not frozen).
So your soda was under slight pressure and the temperature was lower than the freezing point at ambient pressure.
Pop it open and release the pressure and the freezing point immediately goes up, thus you have a partially frozen soda.
I do this all the time to my sodas. I like the fact that I can get ice in to the can or bottle without much work.
Fun with Physics.
2006-07-22 08:16:35 · answer #1 · answered by manofadvntr 5 · 2⤊ 2⤋
Two responders have noted that dissolved CO2 will lower the freezing point of the soda. But that is not the only possible cause. It is possible to supercool a liquid: to cool it below its normal freezing point. When agitated, or you drop in an ice crystal, freezing takes place until the heat released by the freezing raises the overall temperature to the freezing point. Try the experiment with a non-carbonated beverage and see what happens.
2006-07-23 04:18:32 · answer #2 · answered by Anonymous · 0⤊ 0⤋
When under pressure the CO2 in the bottle converts to carbonic acid which dissolves in the soda. (Look at the bottle of soda and you do not see the CO2 bubbles.)Even though the temperature of the soda is below freezing, the dissolved carbonic acid acts as an antifreeze. When the bottle is open the pressure is released & the acid changes back to CO2 gas which does not in this state act as an antifreeze. The liquid then freezes.
We may have solved Global warming: Don't open any more soda bottles and cans.
2006-07-22 16:09:37 · answer #3 · answered by tjc 2 · 0⤊ 0⤋
this is how a vapor compression air conditioner works. science in action. when the bottle was pressurized at the plant, work was done on both the liquid and gas compressing it. it then cooled to essentially 32F but not yet changing to solid. pressurizing the liquid would also lower its freezing temperature a little. so when you quickly released the pressure, the stored energy was removed from the liquid lowering its temperature to below the freezing point solidfying some of it. there wasn't enough stored energy to solidify it all.
this is a fundamental part of thermodynamics.
2006-07-22 15:18:35 · answer #4 · answered by Anonymous · 0⤊ 0⤋
A combination of the freezing point raising as the pressure is released when you open the container plus the carbon dioxide bubbles seeding the ice formations.
2006-07-22 15:31:53 · answer #5 · answered by Dale P 6 · 0⤊ 0⤋
It had to have something to do with pressure change. There was pressure inside the can keeping the liquid from solidifying. When you released the pressure the liquid suddenly went brrrrr it's cold in here.
2006-07-22 15:18:55 · answer #6 · answered by Wascal Wabbit 4 · 0⤊ 0⤋
Are you in Nunavut hangin with your Inuit homies?
That may be why.
Sounds pretty sweet though.
Try it again with a video camera.
2006-07-22 15:14:11 · answer #7 · answered by Anonymous · 0⤊ 0⤋
there r some things better left unexplained..
2006-07-22 15:13:45 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Maybe it was frozen
2006-07-22 15:14:16 · answer #9 · answered by SwampFox 2 · 0⤊ 0⤋