Question

As a result of Osmosis, the volume of the concentrated solution______.

• A. Gradually Increases
• B. Gradually Decreases
• C. Suddenly Increases
• D. Remains Constant.

Answer 1

The correct option is A

Gradually Increases

Explanation for the correct answer:-

Option (A) Gradually Increases

• Osmosis is the spontaneous net movement of the solvent molecules through a semi-permeable membrane into the region where there is a high solute concentration.
• This flow is in the direction that tends to equalize the solute concentrations on both sides.
• This osmosis results in the gradual increase of the volume of the concentrated solution.
• The solvent particles are small and thus can very easily pass through these holes, on the other hand, solute particles are larger and thus cannot pass through.
• When the semipermeable membrane separates a solution from the pure solvent, the solvent molecules move back and forth through the membrane.
• But this does not happen in equal numbers.
• More molecules move from the pure solvent into the solution than from the solution into the solvent which results in an increase in the volume of the solution.
• Hence it is the correct option.

Therefore, option (A) Gradually Increases is the correct answer.