Question

When the solute has been added in the solution, then which of the following observation can be made?

• A. The DPD of the solution decreases
• B. The $\psi$ w of the solution increases
• C. DPD of the solution decreases, while its $\psi$ w increases
• D. DPD of the solution increases, while its $\psi$ w decreases

Answer 1

The correct option is D DPD of the solution increases, while its $\psi$ w decreases

Water potential of a solution is also called as chemical potential of water. It depends on the number of water molecules in the solution relative to solute molecules. More the number of water molecules more the water potential. Diffusion pressure deficit (DPD) is the decrease or deficit in diffusion pressure. The diffusion pressure is created due to solvent particles in the solution. The deficit in diffusion pressure is caused due to solute particles. When solute is added, the deficit in DPD increases.