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KingSupernova t1_j3i3zac wrote on January 8, 2023 at 7:07 PM

Reply to comment by pzerr in How much do water molecules move around within a stationary body of water? by KpgIsKpg

Friction against what?

Heat is the average movement speed of the particles. The average isn't going to spontaneously increase without external energy being put into the system.