## Extensive vs. Intensive

Rian Montagh 2K
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

### Extensive vs. Intensive

What is the difference between an extensive and intensive property? I know general heat capacity in extensive and specific heat capacity is intensive, but what do these words mean?

Gary Qiao 1D
Posts: 66
Joined: Fri Sep 28, 2018 12:26 am

### Re: Extensive vs. Intensive

Extensive means that the properties can change based on the amount of substance (so conditions such as mass and volume), while intensive means that the properties are independent of the amount of substance (so mass and volume would not change an intensive value).

Brian Chang 2H
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

### Re: Extensive vs. Intensive

Extensive properties are tied to external factors (such as mass and volume), whereas intensive properties (hardness, colour, boiling point) do not change with the amount of substance.

megan blatt 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:28 am

### Re: Extensive vs. Intensive

Extensive properties are reliant upon the amount of substance present. For example, mass is an extensive property. Intensive properties are not reliant upon the amount of substance that is present and is intrinsic to the substance. General heat capacity is extensive because it is not divided by the mass of the substance so it changes depending on how much of the substance is present. Specific heat capacity is measured "per gram" so it holds the same value no matter how much of the substance is present.

Julia Lee
Posts: 80
Joined: Fri Sep 28, 2018 12:29 am

### Re: Extensive vs. Intensive

Wait so what are extrinsic and intrinsic properties than? Are how are they different than extensive and intensive properties?

Ariel Cheng 2I
Posts: 67
Joined: Fri Sep 28, 2018 12:29 am

### Re: Extensive vs. Intensive

I am not entirely sure about extrinsic versus intrinsic though I think they are similar. Intrinsic properties are ones that do not depend on outside factors / amount of substance such as boiling point/density whereas extrinsic properties depend on outside factors / amount of substance such as weight or mass.