Extensive vs Colligative property

[Monkeymaniac]

They both seem to be dependent on amount (number of) molecules present in the system. So how exactly are they different? Thanks in advance.

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[ilovemcat]

They both seem to be dependent on amount (number of) molecules present in the system. So how exactly are they different? Thanks in advance.

It would be intensive, because it would not change if you added more solution with the same concentration.

An extensive property is a property that changes when the size of the sample changes. Examples are mass, volume, and length.

An intensive property doesn't change when you take away some of the sample. Examples are temperature, color, hardness, melting point, boiling point, pressure, molecular weight, and density.

 

[fizzgig]

extensive properties change when you change the amount of the pure substance. this term isn't related to impurities.

colligative properties change when you add more or less of an impurity, though the identity of the impurity doesn't matter.

so while temperature is a property (an intensive one), boiling point elevation is a colligative property.

extensive/intensive properties describe the state of the substance and colligative properties affect a property's key values.

my best guess.