The deeper you go, the more water above you is pressing down on you. Does this increase water density the deeper you go?

  • fubo@lemmy.world
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    1 year ago

    Water is not very compressible; even at the bottom of the ocean a kilogram of plain water still takes up 0.982 liters of volume (compared to 1 liter at the surface).

    https://en.wikipedia.org/wiki/Properties_of_water#Compressibility

    However, actual ocean water is saline (salty), and the salinity of the ocean varies widely. Dissolved salt makes ocean water more dense than pure water; and the more salt there is, the denser it is. That’s why it’s easier to float in the ocean than in a freshwater lake.

    Typically, the water at the bottom of the ocean is slightly less salty than the water at the surface. This is because evaporation happens at the surface.