Extensive vs. Intensive Property

[JaxonBaum3B]

What is the difference between what is an extensive and intensive property when using units in an equation and which one, or can both, effect the answer to a problem?

[Silvia Huang 3D]

intensive property
- independent of the size of the sample. Ex: density, temperature, concentration

Extensive property
- dependent on the size of the sample. Ex: enthalpy, volume and internal energy

Intensive properties would have units in the form of x/y, whereas extensive property should just have a scalar unit. You need to look at the specific problems to see which one affects the outcome.

[Rachel Lin 2D]

An extensive property is one that depends on external properties. For example, heat capacity has the units kJ/Celsius or kJ/K. The heat required to raise the temperature of the substance by 1 Celsius depends on the amount of substance.
An intensive property, on the other hand, does not depend on any external measurement. In thermodynamics, specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1 Celsius. All the units are there.
I suppose both can answer problems, but an extensive property, such as heat capacity, would leave out some information, like the amount of substance. If you use heat capacity, and the units do not cancel out to what you are trying to find, then try using specific heat capacity.