= Molecular-scale temperature
{wiki=Molecular-scale_temperature}
Molecular-scale temperature refers to the average kinetic energy of molecules within a substance at a microscopic level. In thermodynamics, temperature is often defined as a measure of the thermal energy of a system. At the molecular scale, temperature correlates with how fast the molecules are moving: the higher the temperature, the faster the molecules move. Within a gas, for example, molecular-scale temperature reflects the average speed of the gas molecules.
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