[Ilikecats12344]

I handed in a piece of work regarding osmosis, a note I got back from my tutor was that " you must explain osmosis as a function of water equilibrium". What does this mean? Isn't osmosis just the movement from a higher concentration to a lower concentration of solute? How do I adapt what my tutor said? How does water equilibrium come into this? I know that isotonic solutions will have reached equilibrium because the movement of water or what ever it may be is diffusing equally in and out of the cell. Help please? :S

[Corribus]

Osmosis is the movement of solvent (e.g., water) from a region of low concentration to a region of high concentration across a membrane until the concentrations are equal. Since the change is spontaneous, it tells you that the initial condition is not at equilibrium, and the final condition is. I guess the tutor wants you to explain what the nature of the equilibrium is.

[Ilikecats12344]

I see. I will define water equilibrium but when I research it, it comes up with things totally unrelated to osmosis :S I guess I will just have to also ask him tomorrow. Thanks for the help