How is the actual osmotic pressure (Π) defined in relation to external force?
Answer
The minimum external pressure that must be applied to the side with the higher solute concentration to prevent net water influx
Osmotic pressure is formally defined as the precise external pressure needed on the solution side to exactly counterbalance the osmotic drive, achieving equilibrium where water moves in and out at equal rates.
Related Questions
What fundamentally drives the movement of water across a barrier during osmosis?What specific type of membrane is required for osmotic pressure to manifest?How is the actual osmotic pressure (Π) defined in relation to external force?What is identified as the primary driving force behind the flow of the solvent during osmosis?Which mathematical law serves as an analogy for modeling osmotic pressure in its basic form?What does the molar concentration (M) variable represent in the basic van't Hoff equation ($
p = MRT$)?What classification is given to osmotic pressure because its magnitude depends only on the count of particles, not their type?What term is introduced in the modified van't Hoff equation ($
p = iMRT$) to account for substances that break apart in solution?For sodium chloride ($ ext{NaCl}$), which dissociates into two ions, what is its theoretical van't Hoff factor ($i$)?What term specifically refers to the osmotic pressure exerted by large plasma proteins confined within the bloodstream?