Question

Osmotic pressure of a solution can be increased by
A. increases the temperature of the solution
B. decreasing the temperature of the solution
C. increasing the volume of the vessel
D. diluting the solution

Answer 1

Hint :Osmotic pressure can be defined as the minimal pressure that must be applied to a solution to halt the movement of solvent molecules across a semipermeable membrane. It is a colligative feature that is influenced by the solute particle concentration in the solution.

Complete Step By Step Answer:
The factors affecting the rate of osmosis include:
Pressure: Because the molecules are being pushed faster across a low concentration, the higher the pressure, the faster they will travel.
Temperature: The faster the water molecules flow through the semipermeable barrier, the higher the temperature.
Surface Area: The larger the surface area, the more space the molecules have to move around; the smaller the area, the more restricted are the movement of molecules, and the slower they travel.
Water Potential: The faster the osmosis, the greater the difference in water potential; because there are fewer water molecules in the low-concentration zone, more water molecules from the higher-concentration region can enter faster and easier.
Concentration gradient: The concentration gradient affects osmosis movement; the lower the solute concentration within a solvent, the faster osmosis will occur in that fluid.
From above factors we can conclude that osmotic pressure of a solution can be increased by
Hence, the correct option is A. increases the temperature of the solution.

Note :
The property of osmotic pressure is colligative. In other words, it is determined by the solute's molar concentration rather than its density. It is the pressure that is provided to a solution to prevent water from flowing inward through a semipermeable membrane, or simply expressed, the pressure required to inhibit osmosis.