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- How to solve this problem- Which one of the following statements is FALSE
Which one of the following statements is FALSE
- Option 1)
The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is BaCl2 > KCl > CH3COOH .> sucrose.
- Option 2)
The osmotic pressure
of a solution is given by the equation
where M is the molarity of the solution.
- Option 3)
Raoult's law states that the vapour pressure of a component over a solution is proportional to its mole fraction.
- Option 4)
Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression.
Answers (1)
As we learned
Freezing -
Freezing occurs when liquid solvent is in equilibrium with solid solvent. As non volatile solute decreases, the vapour pressure freezing point decreases.
-
The extent of depression in freezing point varies with the number of solute particles for a fixed solvent only and it is a characteristics feature of the nature of solvent also. So for two different solvents the extent of depression may vary even if number of solute particles be dissolved.
Option 1)
The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is BaCl2 > KCl > CH3COOH .> sucrose.
Option 2)
The osmotic pressure of a solution is given by the equation
where M is the molarity of the solution.
Option 3)
Raoult's law states that the vapour pressure of a component over a solution is proportional to its mole fraction.
Option 4)
Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression.
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