sealed liquids


Recommended Posts

In a sub-zero environment, sealed containers of liquid (soda, water bottles etc) would be destroyed the first time they froze.

No they wouldn't.

Every plastic bottle or soda can has a bit of air in it for safety reasons, which can be compressed during soda crystallization. When soda/water freezes it expands per additional 100ml of volume for every liter of liquid soda/water, thus compressing the air + carbon dioxide mixture in the bottle/can.

Plastic soda bottles and aluminum soda cans are designed to withstand high pressure. The pressure inside the soda can or bottle usually is in the range of 2-3 atm (~30-45 psi), and they can safely withstand up to 6 atm (~90 psi) of pressure. Although they can endure even more. Plastic bottles and not very distensible, especially in sub-zero temperatures, they usually explode at 7.5-8 atm (~110-120 psi). But, soda cans, due to very thin walls combined with great ductility of aluminum, will deform but not break.

In these videos you can see the proofs of that:

[spoil][bBvideo 560,340:22k4u7ed]

[/bBvideo][bBvideo 560,340:22k4u7ed]
[/bBvideo][bBvideo 560,340:22k4u7ed]
Link to comment
Share on other sites


This topic is now archived and is closed to further replies.