Does Soda Water Bubbling Depend on Temperature?

  • Thread starter Thread starter arcnets
  • Start date Start date
  • Tags Tags
    Water
AI Thread Summary
The discussion centers around the effects of freezing soda water in an open vessel and whether the water will retain its carbonation after melting. Theoretical insights suggest that carbonic acid (H2CO3) dissociates into water (H2O) and carbon dioxide (CO2) when the soda is frozen. As the temperature decreases and pressure is reduced, the solubility of CO2 decreases significantly, leading to the expectation that most of the gas would escape during the freezing process. One participant shares personal experience freezing Coke, noting that it remained fizzy upon thawing, although the taste was altered. Overall, the consensus leans towards the idea that freezing soda water will likely result in a loss of carbonation due to the release of CO2.
arcnets
Messages
493
Reaction score
0
Hi all,
today someone asked me a very simple question:
"If I have some soda water, and put it in the deep-freeze in an open vessel, so as to make ice, and take it out again later, and let the ice melt,
will the water bubble as before? Or not?"

Of course I said, "Try it!". But I'd like some theoretical background. Obviously, the water bubbles because of the H2CO3 dissolving into H2O + CO2. So the question is, what happens to the H2CO3 when the water starts to freeze. One should expect that the H2CO3 freezes earlier because the molecule is heavier, and thus is conserved. But you never know...

Any help? Thx...
 
Chemistry news on Phys.org
You said in an "open vessel" so I'm assuming you're pouring it out from it's original container into something else.

The CO2 I think would dissipate and you'd be left with frozen water. Water can hold so much CO2 at normal pressures and temperatures. When you reduce the pressure (ie. you open the bottle), AND you reduce the temperature of its surroundings, the solubility of the gas becomes VERY low...So all the gas should be gone!
 
Solubility of gases increases with decreasing temperature. Heating water is a good way to start degassing. That's why you get clear ice cubes from freezing hot tap water.

I have frozen Coke before and it is still fizzy after thawing (doesn't taste right though).
 
Thanks. :smile:
 
It seems like a simple enough question: what is the solubility of epsom salt in water at 20°C? A graph or table showing how it varies with temperature would be a bonus. But upon searching the internet I have been unable to determine this with confidence. Wikipedia gives the value of 113g/100ml. But other sources disagree and I can't find a definitive source for the information. I even asked chatgpt but it couldn't be sure either. I thought, naively, that this would be easy to look up without...
I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!
Back
Top