Temperature (T) is an intensive property that measures how hot or cold a system is, and it reflects the average kinetic energy of the system's particles. Heat flows spontaneously from a region of higher temperature to one of lower temperature. Because it is intensive, temperature does not depend on the amount of substance present.

温度(T)是衡量系统冷热程度的强度性质,反映系统粒子的平均动能。热量自发地从温度较高的区域流向温度较低的区域。由于是强度性质,温度不依赖于所存在物质的量。