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When water in a pot heats up why does the lid lift up.?

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asked Oct 15, 2017 in Other-Home/Garden by Silent Eyes (220 points)
When water in a pot heats up why does the lid lift up.?

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answered Oct 16, 2017 by Shawn (105,070 points)
The reason a pot lid lifts up when boiling water heats up is the pressure that the steam from the boiling water produces.

Steam produces pressure which causes the lid to lift up.

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