[ELI5] Can one physically compress water, like with a cyclinder of water with a hydraulic press on the top, completely water tight, pressing down on it, and what would happen to the water?

Question

[ELI5] Can one physically compress water, like with a cyclinder of water with a hydraulic press on the top, completely water tight, pressing down on it, and what would happen to the water?

In: 1967

Answer 1

Doesn’t water compress when it gets cold in pipes?

For example, a pipe is holding water at ~4 degrees C and the outside temp drops below 0: The cold water takes up more space than the warm water but is confined to the same volume. Compression. When the pressure is higher than the strength of the pipe, the pipe breaks and floods your home.

If you chill water in a pipe capped at both ends, it explodes because the water pressure is so high. Not because of an outside force like hydrolics, so isn’t it because the water is compressing itself as it gets to freezing?

If not, how does the water pipe capped at both ends explode? If water wasn’t compressible wouldn’t it split the pipe pretty simply between 4 and 0c? Ie not explosively?

Or is the pressure that causes that different than the pressure of an explosive.