Chemistry · Colligative properties of dilute solutions: a relative lowering of vapour pressure, depression of freezing point, the elevation of boiling point and osmotic pressure
At constant temperature, the osmotic pressure of a solution is: This question ha
At constant temperature, the osmotic pressure of a solution is: This question has multiple correct options
- A. directly proportional to the concentration
- B. inversely proportional to the molar mass of solute
- C. directly proportional to the square of the concentration
- D. directly proportional to the square root of the concentration
Step-by-step solution
According to van't Hoff equation, osmotic pressure (π) is given by π = iCRT, where C is molar concentration, R is gas constant, T is temperature, and i is van't Hoff factor. At constant temperature, osmotic pressure is directly proportional to the concentration. Option B is conditionally true for a fixed mass and volume but not universally, so the best answer is A.
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