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Homework Help: Physics behind osmotic pressure

  1. Dec 4, 2015 #1
    1. The problem statement, all variables and given/known data
    Why is the pressure applied on the surface of the solution?

    2. Relevant equations
    Definition: If a pure solvent and a solution is separated by a semipermeable membrane the minimum pressure applied on the surface of the solution to stop osmosis is called osmotic pressure.

    3. The attempt at a solution
  2. jcsd
  3. Dec 4, 2015 #2


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    Staff: Mentor

    Is that a homework question (as stated), or is it a more general question?
  4. Dec 8, 2015 #3
    I think it's more a general question.

    Cause the surface is a boundary between two different substances.
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