Freezing point? A colligative property?

[going2breakdown]

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I have an answer here that says in solution BaCl2 has a lower freezing point than NaOH, or NH4NO3. I know that boiling point elevation and freezing point depression are colligative properties, but is freezing point a colligative property on it's own? Does this just have to do with the fact that it is in solution?

 

[Charles Darwin]

vant Hoff Factor

 

[shaboobly]

I have an answer here that says in solution BaCl2 has a lower freezing point than NaOH, or NH4NO3. I know that boiling point elevation and freezing point depression are colligative properties, but is freezing point a colligative property on it's own? Does this just have to do with the fact that it is in solution?

freezing point is also known as the melting point which is also known as fusion. the mp is an intrinsic property for all substances, meaning it does not matter how much you have of a substance because regardless it will always melt at the same conditions (unless it is not pure, which in this case is considered a colligative effect because of the amount of impurities you have). freezing point depression is a colligative property which is based solely on the amount of particles you have in solution, which is not a pure substance.

 

[going2breakdown]

Thanks. I see they meant the solvent now. This really helps.