The alchemist
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I sometimes wondered about this as a kid and thought compressed water would heat up or something which is logically for a layman. So I Googled it, and it turns out that under certain fictional conditions things can become much more interesting than that. Click on the link below if you're interested.
https://geekswipe.net/science/chemistry/what-happens-to-water-when-you-compress-it/
https://geekswipe.net/science/chemistry/what-happens-to-water-when-you-compress-it/