How can you separate carbon dioxide from fizzy drinks?

Answer 1

You remove the pressure. In the case of carbonated drinks, you remove the cap or open the can. The carbon dioxide will evaporate from the liquid.

Pour a cup of your carbonated soda (pop for those folks in New England) and leave it to sit for a couple of hours. Then taste it; it should taste 'flat' to you because the 'fizz' gives a sharpness to the taste of the soda. Another (more technical) experiment is to open a bottle of carbonated soda and place a deflated balloon over the mouth of the bottle; it has to be a tight fit so the gas can't escape. Depending on the amount of carbon dioxide in the bottle, it may be enough to lift the balloon upright or even inflate it to a degree.

Answer 2

One way to separate carbon dioxide from fizzy drinks is to pour the drink into a container and allow it to sit uncovered for a period of time. During this time, the carbon dioxide will naturally escape from the liquid, as it is less soluble in the liquid at lower pressures. Another method is to apply heat to the drink, which will also cause the carbon dioxide to escape.

Answer 3

Well, honey, carbon dioxide in fizzy drinks is what gives it that fun fizz. To separate it, you can release the pressure slowly or stir it to speed up the process. Or you can just let it go flat and deal with a sad, lifeless drink. Your call, sugar.