The osmotic pressure of a solution can be increased by

Options

A. Increasing the volume
B. Increasing the number of solute molecules
C. Decreasing the temperature
D. Removing semipermeable membrane

Answer

B

Explanation

Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. It is given by the formula,
`pi = n/V RT`
From the above formula, it is clear that osmotic pressure is directly proportional to the number of solute molecules, i.e.,
`prod prop n`
Hence, by increasing the number of solute in a solution the osmotic pressure of a solution can be increased.