Does the solution with higher osmolality have higher or lower osmotic pressure?

Osmotic pressure is a measure of the tendency of a solution to draw water into it through a semipermeable membrane, and it is directly related to the concentration of solute particles in the solution. Solutions with higher osmolality contain a greater number of solute particles per unit of solvent, which increases the osmotic pressure.

When the osmolality of a solution increases, it means that there are more solute particles available to exert an osmotic force. As a result, this leads to an increase in osmotic pressure because the solution's ability to attract water is heightened. Therefore, a solution with higher osmolality will indeed have higher osmotic pressure, as it will effectively draw more water from areas of lower concentration, balancing the concentration gradient across the semipermeable membrane.

In summary, the relationship between osmolality and osmotic pressure highlights the fundamental principles of how solute concentration impacts the behavior of solutions in biological systems.