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Topic: simple equilibrium question  (Read 2784 times)

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Offline benzenejamie

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simple equilibrium question
« on: December 24, 2008, 04:54:57 AM »
If i have a solution with gases inside of it (ie carbonated beverage) in a sealed 2 litre bottle: does increasing the temperature favor the space occupied by the gas or the liquid?

Offline Rabn

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Re: simple equilibrium question
« Reply #1 on: December 24, 2008, 07:27:32 PM »
What do you mean when you say favor?

Offline nj_bartel

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Re: simple equilibrium question
« Reply #2 on: December 24, 2008, 08:18:32 PM »
I believe he means -  Will there be more or less CO2 dissolved in the liquid than there was before increasing the temperature?  If that's the case, solubility of a gas in a liquid increases with decreased temperature.

Offline benzenejamie

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Re: simple equilibrium question
« Reply #3 on: December 25, 2008, 05:04:15 AM »
I think my problem is that i am getting temperature/pressure co relation confused. When there is More pressure than there is greater solubility of a gas into a liquid. (So if you open a pop bottle on a mountain the gas should escape quicker)
I think I am also confusing a gas dissolved into a liquid equilibrium with a liquid/vapour system. If you increase the temperature for a liquid it will evaporate quicker and condense quicker but overall the system will have less liquid but more vapour-yes?
If you increase the temperature you are also increasing the pressure proportionately?
So if you increase the temperature for a solution with gas dissolved into it (ie a carbonated beverate) the pressure will also increase pushing the gas further into the solution. So my question is: when temp increase causing more evaporation of the solution and pressure increase causing more solubility are you going to get more gas above the solution or just more vapour?

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