“It’s because the water molecules are trapped, they cannot move which is what happens when water freezes. When water is heated up the molecules become more and more energetic, and move around faster and faster. But if they cannot move, they cannot be liquid.”
Must be a lot of pent up/stored up energy in those water molecules. Just like Kevin Bacon being stuck in church, they’re wanting to bust out and start dancing at those temps, but are trapped in the tubes. Probably lots of energetic angry vibes being sent out from being locked up like that.
They can’t move. So there is less and less energy as the nanoscale drops. That’s why the water will freeze at a higher temperature as the size goes down.