Question

Define: Osmotic pressure

Answer 1

Osmotic Pressure:

Osmotic pressure is the minimum pressure that must be applied to a solution to prevent the flow of solvent molecules into it through a semipermeable membrane.

It is a colligative property and is given by: \[ \pi = C R T \] where:

• \(\pi\) = osmotic pressure
• \(C\) = molar concentration of solute
• \(R\) = universal gas constant
• \(T\) = absolute temperature