What just happened with my soda?!?

Question

I put my bottle of coke in the freezer, cause I wanted to have it all slushie-like...so I left it in there for a couple hours. I just went to check on it, and it didn't look frozen at all, so I opened the bottle. Once I opened the bottle, it froze up!!! What happened?

Answer 1

That happens to me sometimes too. I think it might be kinda frozen in the middle or something. Or like, under the cap. But I've had that happen several times.

Answer 2

A fluid under pressure freezes at a lower temperature so your soda stayed liquid.

When you released the pressure by opening it the pressure dropped and the liquid froze.

If you'd left it in the freezer until it HAD frozen, because ice takes up more room than the water in the coke, the bottle would have broken.

Answer 3

idk

Answer 4

The pressure under the cap became intense.

Answer 5

You probably put it in to long and you never can tell when its in a can if its frozen or not.

Answer 6

Its called super-cooling. You take the temperature of a liquid down past the freezing point, but if you keep it really still, then crystals can't form, especially in a plastic bottle since it's really smooth inside.

But once you move it a bit, it starts a chain reaction of the molecules hitting each other and forming crystals, which causes it to freeze up in seconds.

And yes, the pressure helps in the process of super-cooling, as someone before me said.