What's the Difference Between Osmosis and Diffusion?
Osmosis is just water doing its thing, moving through a semi-permeable membrane from low to high solute concentration. Diffusion, on the other hand, is all about molecules (not just water) spreading out from high to low concentration until they’re evened out.
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Osmosis is a type of diffusion but specifically for water across a membrane, while diffusion can involve any molecules spreading out in any environment.
Osmosis only involves water and needs a membrane; diffusion involves all molecules and doesn’t need a membrane.
In osmosis, water molecules move to balance solute levels through a membrane. Diffusion simply spreads molecules around evenly in any given space.
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