Question

At a given temperature, osmotic pressure of a concentrated solution of a substance :

• A. is higher than that of a dilute solution
• B. is lower than that of a dilute solution
• C. is same as that of a dilute solution
• D. cannot be compared with osmotic pressure of dilute solution

Answer 1

The correct option is A is higher than that of a dilute solution

At a given temperature, osmotic pressure is given by a formula i.e.

$\Pi =iCRT$

Where $\Pi$ is the osmotic pressure, $i$ is the van’t Hoff factor, $M$ is the molar concentration, $R$ is the universal gas constant and $T$ is the temperature.

Thus, osmotic pressure directly proportional to the concentration.

For a concentrated solution, the osmotic pressure is greater than the osmotic pressure for a dilute solution.

Hence, option $\text{A}$ is correct.