When a bottle of soft drink is shaken violently, CO2 gas escapes from solution and

exerts increased pressure on the interior of the bottle. If the bottle were to be

opened in this condition, the beverage would spurt out of the bottle. If the bottle remains capped and is allowed to sit for a short amount of time, the interior pressure subsides. Why does the pressure decrease with time?

Question

Jaxson Blackwell

Chemistry

31 December, 22:38

When a bottle of soft drink is shaken violently, CO2 gas escapes from solution and

exerts increased pressure on the interior of the bottle. If the bottle were to be

opened in this condition, the beverage would spurt out of the bottle. If the bottle remains capped and is allowed to sit for a short amount of time, the interior pressure subsides. Why does the pressure decrease with time?

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Answers (1)

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Astro · Answer 1

The pressure decrease with the passage of time due to again dissolution of carbon-dioxide gas in the liquid solution.

Explanation:

In soft drinks, the carbon-dioxide gas is added in the drinks with high pressure because carbon-dioxide is a gas which is insoluble in soft drink at room temperature but soluble in the drinks at high pressure so when the pressure is removed from the soft drink, the carbon-dioxide gas releases in the air with the passage of time. But in close bottle, there is no place of escape so it again dissolve in the solution.