• Chrobin@discuss.tchncs.de
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      1 month ago

      I had to derive osmotic pressure for my statistical mechanics exam in my bachelor’s. So in what sense don’t we know?

      • Dogyote
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        1 month ago

        We don’t know what molecular mechanism creates the pressure.

      • Dogyote
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        1 month ago

        No? Water can’t carry anything across the membrane.

        • OsrsNeedsF2P@lemmy.ml
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          1 month ago

          Oh. Then how does the stuff get across the membrane? Does the membrane allow stuff to move over a concentration gradient without the water?

          • Dogyote
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            1 month ago

            Water can move freely across the membrane, but the stuff that’s dissolved in the water cannot move across the membrane.