Question

what is osmotic pressure dependent on? volume of the solution type of solute particles concentration of solute particles temperature of the solution

Explanation:

Osmotic pressure is a colligative property. Colligative properties depend on the number of solute particles (concentration) and temperature. The formula for osmotic pressure is $\Pi = iMRT$, where $i$ is the van't Hoff factor (related to the number of particles from dissociation), $M$ is the molarity (concentration of solute particles), $R$ is the gas constant, and $T$ is the temperature. It does not depend on the volume of the solution (as molarity already accounts for volume - $M=\frac{n}{V}$) or the type of solute particles (except in terms of how they dissociate, which is accounted for in $i$, but overall it's about the number of particles, not the specific type like "sugar" vs "salt" in a non - dissociating vs dissociating sense in a basic colligative property view for simple cases).

Answer:

Concentration of solute particles, Temperature of the solution.