Sunday, July 22, 2007

Instantly Freeze Soda

This works with any carbonated beverage (never use beer). Take
your beverage and cool it down to a temperature around 20F or
-7C.Either the freezer or outside if it is cold enough. When more...
opened it will freeze instantly.

The reason:
This demonstrates the principle of freezing point depression.
Pure water at 1 atm will freeze at 0C or 32F. When something
is dissolved in it the freezing point drops to a lower
temperature. This is why when roads are salted there are
puddles even though the temperature is below freezing. The
more salt the lower the temperature must go before it freezes.
When you open the bottle it does the opposite. The freezing
point goes from (a guess) -10C to around 0C when the CO2
leaves the solution (the concentration decrease). Since the
soda is at -7C it freezes instantly when the CO2 leaves the

Instantly Freeze Soda - Click here for funny video clips

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