Osmotic pressure of a solution can be increased bya)increasing the te...
Explanation:
Osmotic pressure is the pressure required to stop the flow of solvent molecules through a semipermeable membrane from a region of low solute concentration to a region of high solute concentration. It is directly proportional to the concentration of solute particles in the solution.
The osmotic pressure of a solution can be increased by decreasing the temperature of the solution. This is because:
1. Osmotic pressure is directly proportional to concentration
When the temperature is decreased, the solubility of most solids decreases, which means that the concentration of solute particles in the solution increases. As osmotic pressure is directly proportional to the concentration of solute particles, a decrease in temperature increases the osmotic pressure of the solution.
2. Solvent molecules move slower at lower temperature
At lower temperatures, the kinetic energy of the solvent molecules decreases, which means that they move slower. This reduces the rate of diffusion of solvent molecules through the semipermeable membrane, which in turn increases the osmotic pressure of the solution.
3. Osmotic pressure is an equilibrium process
Osmotic pressure is an equilibrium process that depends on the balance between the concentration of solute particles and the concentration of solvent molecules. When the temperature is decreased, the equilibrium shifts towards the side with higher concentration (i.e. the side with more solute particles), which increases the osmotic pressure of the solution.
Therefore, we can conclude that the osmotic pressure of a solution can be increased by decreasing the temperature of the solution.
Osmotic pressure of a solution can be increased bya)increasing the te...
Osmotic pressure is given by the expression π = RTC = RTn/V Hence π α T
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