eli5, What happens inside an unopened fizzy drink?

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Take a can of beer, you can shake it and feel it gets noticeably firmer indicating it will spray if you open it, but if left for long enough it returns back to its normal state. What happens inside to make that pressure increase dissipate?

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Anonymous 0 Comments

The carbon dioxide gas dissolves back into the liquid.

When you shake the can you momentarily increase the surface area considerably and a lot of the gas comes out of solution to pressurize the can.

That same pressure then slowly forces the gas back into solution once the agitation stops.

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