Temperature is considered an intensive property because it does not depend on the amount of substance present in a system. Unlike extensive properties, which change when the size or amount of substance changes, intensive properties remain constant regardless of the quantity of material.
For example, if you have a small cup of water at 100 degrees Celsius and you take a larger pot of water at the same temperature, the temperature of both the cup and the pot remains 100 degrees Celsius. This intrinsic characteristic of temperature is crucial in various scientific and engineering applications, allowing us to accurately measure and compare thermal energy without the variability introduced by the quantity of matter.
In summary, temperature is an intensive property because it reflects the inherent thermal state of a material, unaffected by how much of the material you have.