What is the osmotic pressure? Which method is most suitable to measure osmotic pressure of a solution?
Answers
Answer:
What is osmotic pressure?
the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution.
Various methods are employed for the measurement of osmotic pressure but the best known method was suggested by Berkeley and Hartley. ... External pressure is now applied on the solution by the piston so that level in capillary remains stationary. The reading of pressure gauge is recorded.
Answer:
The osmotic pressure (π) of an 'ideal' dilute solution is described by van't Hoff's law, namely π = RTC, where R is the gas constant, T the absolute temperature and C the molar concentration of particles: RT is 25.4 atmospheres per mole/litre at 37°C.