Diffusion
(a) Two sugar-water solutions of different concentrations, separated by a semipermeable membrane that passes water but not sugar. Osmosis will be to the right, since water is less concentrated there. (b) The fluid level rises until the back pressure ρgh equals the relative osmotic pressure; then, the net transfer of water is zero.
Source
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"OpenStax College, Molecular Transport Phenomena: Diffusion, Osmosis, and Related Processes. February 16, 2013."
http://cnx.org/content/m42212/latest/
OpenStax CNX
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