When cold water is poured over a tightly corked tin can containing steam, the tin can gets crushed. What crushes the tin can?

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Solution

When cold water is poured over a tightly corked tin can containing steam, the tin can gets crushed because of the atmospheric pressure acting on the outer surface of the can from all sides. When cold water is poured over a tightly corked can, the steam condenses into water and creates a partial vacuum inside the can. As there is no air pressure inside the can, the air pressure from outside acting on all sides on the tin crush it.

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