Does the addtion of a solute to a solution increase osmotic pressure?
Answer:
Yes.
osmotic pressure = c RT
c is the molar concentration so the addition of a solute increases the concentration and also osmotic pressure increases
Adding solvent c decreases and osmotic pressure decreases
no, since the osmotic pressure is a function of concentration, adding a solute will decrease the concentration.
Osmotic pressure :
The osmotic pressure π of a dilute solution can be calculated using the formula
π = iMRT,
where
i is the van 't Hoff factor
M is the molarity
R is the gas constant, where R = 0.08206 L · atm · mol-1 · K-1
T is the thermodynamic temperature (formerly called absolute temperature
By adding solute the molarity of the solution will increase thereby resulting in increase in the osmotic pressure.
Therefore, Yes by addition of a solute the osmotic pressure increases.
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