Key idea
Osmosis
Solution diluée idéale : π = iMRT
Osmosis is solvent transport through a selectively permeable membrane driven by differences in chemical potential; introductory treatments often express it through osmotic pressure.
Osmosis
The key idea
Osmosis is solvent transport through a selectively permeable membrane driven by differences in chemical potential; introductory treatments often express it through osmotic pressure.
Why it matters
It matters in cells, desalination, food science and solution chemistry, and is more precise than the vague idea that 'water simply moves toward salt'.
A picture to remember
Key idea
Osmosis
Guided example
Osmosis
Osmosis is solvent transport through a selectively permeable membrane driven by differences in chemical potential; introductory treatments often express it through osmotic pressure.
Put it into practice
Osmosis
Choose a concrete case linked to Osmosis. Write down the known information, what you are trying to find, and the units. Then state the rule, model or trend you will use. If a calculation is involved, keep the units visible at every line; if it is conceptual, state what changes and what remains fixed.
Check your answer
A strong answer contains four things: the starting situation, the variable that changes, the direction or numerical result, and one check. The check can be a unit, an order of magnitude, a limiting case or a comparison with a familiar example.