## About Freezing Point Depression Calculator (Formula)

The freezing point depression formula relates the freezing point depression of a solution to the molal concentration of the solution and the molal freezing point depression constant of the solvent.

When a nonvolatile solute is added to a solvent, it reduces the vapor pressure of the solvent, resulting in a lower freezing point compared to the pure solvent.

The amount of depression in the freezing point is proportional to the molal concentration of the solution and is given by the equation:

**ΔTf = Kf x m**

where ΔTf is the change in freezing point depression, Kf is the molal freezing point depression constant of the solvent, and m is the molal concentration of the solution. The molal freezing point depression constant is specific to each solvent and is a measure of the amount of depression in freezing point per mole of solute per kilogram of solvent.

The freezing point depression formula is used in various fields, such as chemistry, biochemistry, and materials science, to calculate the properties of solutions and materials.