Osmotic pressure π of a dilute solution obeys π = C R T. Here C represents
A{'text': 'Mole fraction of solute', 'label': 'A'}
B{'text': 'Molality of the solution', 'label': 'B'}
C{'text': 'Mass fraction of solute', 'label': 'C'}
D{'text': 'Molarity of the solution', 'label': 'D'}
Answer & Solution
Correct answer: D. {'text': 'Molarity of the solution', 'label': 'D'}
1. The van't Hoff osmotic pressure formula is π = C R T.
2. Here C is the molar concentration (molarity) of the solute in mol/L.
3. R is the gas constant, T is temperature in K.
4. Osmotic pressure is a colligative property; C accounts for particle count per unit volume.
_Source: NCERT Class 12 Chemistry, Unit 1 "Solutions", §1.6_
Related questions
The mass of NaOH (M = 40 g/mol) required to prepare 500 mL of a 0.20 M NaOH solution isWhich of these solutions will boil at the highest temperature at 1 atm?The molality of a 1 M aqueous NaCl solution (density = 1.04 g/mL, NaCl M = 58.5 g/mol) is Van't Hoff factor i > 1 for a solute indicatesA negative deviation from Raoult law is expected whenIf a solute dimerises in solution, its observed molar mass compared with the calculated vaWhich of the following is NOT a colligative property?For an ideal binary liquid solution, Raoult law gives the total vapour pressure as