The depression of freezing point is directly proportional :

mole fraction of the solution

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molarity of the solution

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molality of the solution

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molarity of the solvent

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Solution

The correct option is C molality of the solution
$Δ T = K_{f} m$

So $Δ T \propto m$

m is the molality of the solution

Thus, the depression of freezing point is directly proportional to the molality of the solution

Hence, the correct option is $C$

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Similar questions

Assertion: Depression of freezing point is a colligative property.

Reason: The depression of freezing point for a solution is directly proportional to the molality of the solution.

Read the above assertion and reason and choose the correct statement regarding it.

Q. Read the passage given below and answer the following questions:
Read the passage given below and answer the following questions:
A soluble solid in solution has the effect of raising its boiling point and depressing its freezing point. The addition of non-volatile substances to a solvent decreases the vapor pressure and the added solute particles affects the formation of pure solvent crystals. According to many researches the decrease in freezing point directly correlated to the concentration of solutes dissolved in the solvent. This phenomenon is expressed as freezing point depression and it is useful for several applications such as freeze concentration of liquid food and to find the molar mass of an unknown solute in the solution. Freeze concentration is a high quality liquid food concentration method where water is removed by forming ice crystals. This is done by cooling the liquid food below the freezing point of the solution. The freezing point depression is referred as a colligative property and it is proportional to the molar concentration of the solution (m), along with vapor pressure lowering, boiling point elevation, and osmotic pressure. These are physical characteristics of solutions that depend only on the identity of the solvent and the concentration of the solute. The characters are not depending on the solute's identity.

Identify which of the following is colligative property:

Q. Assertion :The, freezing point of 0.05 M urea solution is diffrent from that of 0.05 M sodium chloride solution. Reason: The depression in freezing point is directly proportional to the number of species present in the solution.

Question 14
Which of the following statements is false?
(a) Two different solutions of sucrose of same molality prepared in different solvents will have the same depression in freezing point.
(b) The osmotic pressure of a solution is given by the equation $π = C R T$ (where, C is the molarity of the solution)
(c) Decreasing order of osmotic pressure for 0.01 M aqueous solutions of barium chloride, potassium chloride, acetic acid and sucrose is
$B a C l_{2} > K C l > C H_{3} C O O H > s u c r o s e$
(d) According to Raoult's law, the vapour pressure exerted by a volatile component of a solution is directly proportional to its mole fraction in the solution

Q. The depression in freezing point is maximum if the solvent used is:

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The depression of freezing point is directly proportional :

The correct option is C molality of the solutionΔT=KfmSo ΔT∝ mm is the molality of the solutionThus, the depression of freezing point is directly proportional to the molality of the solution Hence, the correct option is C

The correct option is C molality of the solution
$Δ T = K_{f} m$

So $Δ T \propto m$

m is the molality of the solution

Thus, the depression of freezing point is directly proportional to the molality of the solution

Hence, the correct option is $C$