What distinguishes intensive properties from extensive properties?

Intensive properties are characteristics of a substance that do not change regardless of the amount of substance present. This means that whether you have a small sample or a large sample, the intensive properties remain constant. Common examples of intensive properties include temperature, pressure, density, and boiling point.

In contrast, extensive properties depend on the quantity of the material. These include mass, volume, and energy. As the amount of substance changes, the values of extensive properties will also change. Therefore, the correct choice directly highlights that extensive properties are related to the amount of substance present, which differentiates them from intensive properties. Understanding this distinction is fundamental in chemistry, as it helps in classifying and predicting the behavior of materials under various conditions.