Question

The osmotic pressure of solution increases if:
A) Temperature is decreased
B) Solution concentration is increased
C) Number of solute molecules is increased
D) Volume is increased

Answer 1

The osmotic pressure is the lowest pressure required to prevent the inward flow of a solution's pure solvent over a semipermeable barrier. It may also be described as a measurement of a solution's proclivity to absorb a pure solvent via osmosis. The greatest osmotic pressure that may develop in a solution if it were isolated from its pure solvent by a semipermeable barrier is known as potential osmotic pressure.

Complete step by step solution:
When two solutions with differing amounts of solute are separated by a selectively permeable membrane, osmosis occurs. From the low-concentration solution to the solution with greater solute concentration, solvent molecules pass across the membrane preferentially. Until equilibrium is reached, the transfer of solvent molecules will continue.
Endosmosis and exosmosis are the two kinds of osmosis.
When a material is put in a hypotonic solution, the solvent molecules migrate inside the cell, causing the cell to become turgid or plasmolyzed. This is referred to as endosmosis.
When a material is put in a hypertonic solution, the solvent molecules leave the cell, causing the cell to become flaccid or plasmolyzed. Exosmosis is the term for this process.
One of the most well-known instances of the solution's colligative characteristics is osmotic pressure. Knowing the basic equation for osmotic pressure is a simple method to figure out what elements will raise the osmotic pressure of a solution. The following is the general equation for osmotic pressure:
$\pi = MRT$
The molar concentration of the solute particles in a solution determines the osmotic pressure of the solution. The osmotic pressure of a solution increases as the number of solute molecules increases. Excess pressure produced on the solution side owing to osmosis is known as osmotic pressure. The osmotic pressure of a solution increases as the number of solute molecules increases.
Therefore option C is correct.

Note:
The measurement of osmotic pressure can be used to determine molecular weights. Osmotic pressure has a significant impact on cells. Osmoregulation is an organism's homeostasis process for achieving osmotic pressure equilibrium. The presence of a solution that causes cells to shrink is known as hypertonicity. The presence of a solution that causes cells to swell is known as hypotonicity. The presence of an isotonic solution causes no change in cell volume.