thermodynamic temperature

Thermodynamic temperature is a measure of how hot or cold something is, based on the energy of tiny particles called molecules. When molecules move faster, the temperature is higher; when they move slower, it's lower. Unlike everyday temperature scales like Celsius or Fahrenheit, thermodynamic temperature is absolute, starting from absolute zero—the point where molecules have minimal motion. It's measured in units called kelvin (K). This concept helps scientists understand heat, energy transfer, and the behavior of materials at different temperatures, forming a fundamental basis for thermodynamics and many physical sciences.