What is a key feature of intensive physical properties?

Intensive physical properties are characteristics of a material that do not depend on the amount or size of the material present. This means that no matter how much of the substance you have—whether it's a small drop or a large container—the intensive properties, such as density, color, boiling point, and specific heat, will remain unchanged.

This is crucial in scientific applications, as it allows for consistent identification and analysis of substances without needing to account for varying sample sizes. For instance, if you have two samples of water, one liter and one milliliter, both will exhibit the same boiling point and density despite the difference in volume. Understanding that intensive properties remain constant regardless of the quantity can also help in calculations and experiments, enabling accurate predictions about a substance's behavior.

The other choices describe properties that pertain to extensive physical properties, which do depend on the sample size (like mass and volume), or they indicate changes that may happen during specific conditions, which do not apply to the concept of intensive properties.