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Can someone explain why???

2K views 17 replies 8 participants last post by  BigBird 
#1 ·
4 1-gallon jugs of distilled water. All bought at the same time, none were opened... Heat was off in my garage for a week and it has been cold,but only one froze??? It is frozen solid, while the other 3 are fine...

This is exactly as they were.


Moved frozen one....


Where they were sitting...


Is one American water, and the other 3 Canadian???
 
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#5 ·
Those are 4L bottles not gallon bottles :poke: a gallon only has 3.758 liters in it.

The one bottle could of had some air in it allowing it to expand and freeze. Pop the top on one of the others and see it it will freeze as soon as it is opened. We leave our pop in the garage and with how cold it is as soon as I open one it starts to freeze.
 
#11 ·
Water normally freezes at 273.15 K (0 °C or 32 °F) however it can also be "supercooled" at standard pressure down to its crystal homogeneous nucleation at almost 224.8 K (−48.3 °C/−55 °F).[2][3] The process of supercooling requires that water be pure and free of nucleation sites, which can be achieved by processes like reverse osmosis, but the cooling itself does not require any specialised technique. If water is cooled at a rate on the order of 106 K/s, the crystal nucleation can be avoided and water becomes a glass. Its glass transition temperature is much colder and harder to determine, but studies estimate it at about 165 K (−108 °C/−162.4 °F).[4] Glassy water can be heated up to approximately 150 K (−123 °C/−189.4 °F).[3] In the range of temperatures between 231 K (−42 °C/−43.6 °F) and 150 K (−123 °C/−189.4 °F) experiments find only crystal ice.
Look at the one that was frozen, you can see it has air bubbles in it. That would be a nucleation site.
 
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