Depression in Freezing Point of the Solvent
Depression in Freezing Point of the Solvent: Overview
This topic covers concepts, such as, Depression in Freezing Point, Molal Freezing Point Depression Constant, Anti-Freezing Agents & Molal Freezing Point Depression Constant Using Molar Heat of Fusion etc.
Important Questions on Depression in Freezing Point of the Solvent
What mass of ethylene glycol (molar mass ) must be added to of water to lower the freezing point of water from

Calculate the depression in the freezing point of water when of is added to of water.

Calculate the freezing point of a solution containing glucose, of water. The freezing point of pure water is and for water is

The freezing point of a solution containing of acetic acid in of benzene is lowered by . The molar mass (g/mol) of acetic acid from this data and the value of van’t Hoff factor would be (for benzene, )

Assertion: Camphor is usually used in molecular mass determination.
Reason: Camphor has low cryoscopic constant and therefore, causes greater depression in freezing point.

Assertion: Sodium chloride is used to clear snow on the roads.
Reason :Sodium chloride depresses the freezing point of water.

Give some examples of anti-freezing agents.

What are anti-freezing agents?

Which of the following statements is false?

of an unknown molecular material is dissolved in of water. The resulting solution freezes at . Calculate molar mass of the material in .()

The depression in freezing point of aqueous solution of urea, sodium chloride and sodium sulphate is in the ratio :

Which is the correct relationship between molal depression constant and enthalpy of fusion ?

of a non-electrolyte solute dissolved in of benzene lowered the freezing point of benzene by . The freezing point depression constant of benzene is . Find the molar mass of the solute.

The observed depression in freezing point of water for a particular solution is . Calculate the concentration of the solution in molality. Given that molal depression constant for water is . (Write only numerical value and round upto two decimal places)

Define molal depression constant. How is it related to enthalpy of fusion?

Which of the following will have maximum depression in freezing point?

How molar mass of a non-volatile solute is related to the depression in freezing point? Derive an equation.

What causes depression in freezing point?

Calculate the temperature at which the solution (of glucose in water) freezes. .

Which of the following solutions contains the maximum freezing point?
