OSMOTIC PRESSURE

INPUT   DATA ♥ EXAMPLE Of Input/Output

Title  

Number of moles of solute   mol  

    

Volume of solution   mL  
Temperature of solution   °C  

     Reset

OUTPUT   VARIABLES   &   GRAPHS

Variables   Values   Units
 ♦  Molar concentration of solution   mol/L  
 ♦  Osmotic pressure, Π   atm  
THEORY  &   FORMULAE

Osmotic Pressure

Solvent properties affected by the amount of solute and not the identity of the solute are called colligative properties, and osmotic pressure is one of these properties. Osmotic pressure is the pressure exerted by the flow of solvent through a semipermeable membrane separating two solutions with different concentrations of solute.

The osmotic pressure of a dilute solution of a non-electrolyte is given by the equation:

     Π = MRT = [n/V]RT

where
     Π = osmotic pressure
     R = universal gas constant = 0.0821 L.atm.K-1.mol-1
     M = molar concentration
     n = number of moles of solute
     V = volume of solution

Tips

    ◊ Use link EXAMPLE Of Input/Output  to demo data entry expectations and results; you may edit & use it as starting point

BIBLIOGRAPHY