Osmotic Pressure and Its Applications
Learn the concept of osmotic pressure, its calculation, and its use in determining molar mass and understanding osmosis.
Why this shows up in the exam
Osmotic pressure is a favorite topic for both conceptual and calculation-based questions in NEET and JEE.
How NEET tests this
Practise it
These are real questions from past NEET papers that test this exact idea.
The following solutions were prepared by dissolving 10 g of glucose (C₆H₁₂O₆) in 250 mL of water (P₁), 10 g of urea (CH₄N₂O) in 250 mL of water (P₂) and 10 g of sucrose (C₁₂H₂₂O₁₁) in 250 mL of water (P₃). The right option for the decreasing order of osmotic pressure of these solutions is
Push further
More challenging6 harder questions built from the past papers above — a step up in difficulty, with distractors designed so you can't get there by elimination. Written and checked by our reviewers, not from a real paper.
Two solutions, A and B, are prepared. Solution A contains 10 g of a non-electrolyte X in 1 L of water, and solution B contains 10 g of a non-electrolyte Y in 1 L of water. At the same temperature, the osmotic pressure of solution A is found to be twice that of solution B. If the molar mass of X is 150 g/mol, what is the molar mass of Y?
More from Solutions
Boiling Point Elevation and Freezing Point Depression
Understand how solutes elevate boiling point and depress freezing point, and how to calculate these changes using K_b and K_f.
Raoult's Law and Ideal Solutions
Understand Raoult's law, its application to ideal binary solutions, and the conditions under which solutions behave ideally.
Non-Ideal Solutions and Deviations from Raoult's Law
Explore positive and negative deviations from Raoult's law, their molecular basis, and the formation of azeotropes.
Vapor Pressure Lowering and Raoult's Law Applications
Apply Raoult's law to calculate relative lowering of vapor pressure and relate it to solution concentration.
Thermodynamic Properties of Solutions
Study the enthalpy and volume changes during solution formation, especially for ideal and non-ideal solutions.
van't Hoff Factor and Abnormal Molar Mass
Study the van't Hoff factor (i), its calculation for electrolytes and non-electrolytes, and its effect on colligative properties and molar mass determination.