Why does steam create pressure, yet ice expands to create water spikes?

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This always confuses me, is it cold that expands and heat contracts?

or the other way around, cold contracts & heat expands?

or as steam & ice spikes suggest, both steam & ice spikes expand? (free energy?)

In: Chemistry

5 Answers

Anonymous 0 Comments

Water is somewhat special in that it is most dense (smallest) at 4 degrees Celsius. If you make it colder or hotter than that it expands. Most everything contracts the colder it gets.

If you had a cube of ice at zero degrees and started to heat it it would actual condense until it gets to 4 degrees rather than expanding.

It’s a pretty rad liquid.

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