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    Roddilla's Avatar
    Roddilla Posts: 145, Reputation: 3
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    #1

    Apr 30, 2011, 08:35 AM
    Does osmosis always need an osmotic pressure to stop?
    Does osmosis always need an osmotic pressure to stop? Because if you have a case with a semi-permeable membrane around it and you place it in a container there is no pressure exerted on the case which may stop osmosis?
    DrBob1's Avatar
    DrBob1 Posts: 425, Reputation: 86
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    #2

    Apr 30, 2011, 08:44 AM
    As your other two questions show, solvent flow stops for either of two reasons: pressure exerted and equality of concentration.
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