What is freezing point depression constant?
The freezing point depression is the difference in temperature between the freezing point of the pure solvent and that of the solution. The molal freezing-point depression constant is equal to the change in the freezing point for a 1-molal solution of a nonvolatile molecular solute.
What is KF constant in chemistry?
Kf is a constant for a given solvent. 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.
What is the scientific definition of freezing point?
freezing point, temperature at which a liquid becomes a solid. As with the melting point, increased pressure usually raises the freezing point. The freezing point is lower than the melting point in the case of mixtures and for certain organic compounds such as fats.
What is freezing point depression and boiling point elevation?
Boiling point elevation is the raising of a solvent’s boiling point due to the addition of a solute. Similarly, freezing point depression is the lowering of a solvent’s freezing point due to the addition of a solute.
What is the freezing point depression constant of lauric acid?
The freezing-point depression constant (Kf) for lauric acid is given (3.9˚C•kg/mol).
What is KF and KR in chemistry?
Thus we can gain better understanding of the equilibrium constant K by using the concept of chemical kinetics. Let kf be the rate of forward reaction and kr be the rate of reverse reaction as shown below.
What is freezing point Class 9?
Freezing Point Definition – The Freezing point is the temperature of a liquid at which it changes its state from liquid to solid at atmospheric pressure.
What is cryoscopic constant or molar depression constant?
Cryoscopic constant : It is the depression of freezing point of the solvent produced on dissolving one mole of a substance in 1000 g of it. It is also called molal depression constant.
What is cryoscopic constant or molal depression constant?
Molal depression constant or cryoscopic constant is the depression in the freezing point of a solution containing one mole of the non – volatile solute in one kilogram of solvent.