The main reason for pouring salt on an icy road is that a solution of water and dissolved salt has a lower freezing point than pure water because of depression in the freezing point of a solution.

Jun 10, 2025 · Freezing point depression occurs when the freezing point of a liquid is lowered or depressed by adding another compound to it. The solution has a lower freezing point than that of the …

Feb 27, 2023 · The maximum depression of the freezing point is about −18 °C (0 °F), so if the ambient temperature is lower, NaCl will be ineffective. Under these conditions, CaCl A 2 can be used since it …

Oct 16, 2021 · Get the freezing point depression formula and definition. See how you calculate it and get examples in everyday life.

Dec 2, 2025 · If you’re hunting for clear, real-world examples of freezing point depression: 3 practical examples stand out immediately—salting icy roads, antifreeze in car engines, and the way salt …

For example, salt is spread on roads in winter to prevent ice from forming, and antifreeze is used in car engines to prevent water from freezing. This simple idea shows how adding something to a liquid can …

Freezing-point depression is what causes sea water (a mixture of salt and other compounds in water) to remain liquid at temperatures below 0 °C (32 °F), the freezing point of pure water.

Discover how freezing point depression works, its formulas, and everyday examples. Master this topic with Vedantu-start learning now!

For example, when salt dissolves in water, it disrupts the formation of ice crystals, resulting in a lower freezing point. The formula that describes this phenomenon is: [ Delta T_f = K_f cdot m ] where ( …

A solution will solidfy (freeze) at a lower temperature than the pure solvent. This is the colligative property called freezing point depression. The more solute dissolved, the greater the effect. An …