What Is Kb and Kf

Kf is the depression in freezing point produced by 1 molal solution of a nonvolatile solute while Kb is the elevation in boiling point produced by 1 molal solution of a nonvolatile solute.

What is KF C m?

Kf = freezing point depression constant of water (-1.86°C/m) m = the molality of the solution (mol solute/kg solvent) i = the number of dissolved particles the solute produces. The i for any molecular compound is 1. For ionic compounds, you’ll need to know how many ions make up a formula unit.

What is KF value?

Kf is called the molal freezing point depression constant and represents how many degrees the freezing point of the solvent will change when 1.00 mole of a nonvolatile nonionizing (nondissociating) solute dissolves in one kilogram of solvent. The table below gives values of Kf for various solvents.