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When boiling water in a can then dipping can into cold water why does the can shrivel up?
Wiki User
∙ 13y ago
Most all items swell somewhat with heat applied. Water does so dramatically. So when a full and sealed container cools, the water retracts in size accordingly. This changes the pressure within the container, so the pressure on the outside is greater and causes it to collapse
Wiki User
∙ 13y ago
Boiling water generates steam inside the can, which expands and increases pressure. When the can is dipped into cold water, the steam rapidly condenses back into water, creating a vacuum inside the can. The higher pressure outside the can then crushes it, causing it to shrivel up.
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