Absolute Temperature -

Absolute temperature is the scale of thermal measurement that starts at the lowest theoretical point possible: .

At its core, temperature is a measure of the average kinetic energy of the particles in a substance. As things get colder, their atoms slow down. Absolute zero ( absolute temperature

Unlike the Celsius or Fahrenheit scales—which were originally based on the freezing point of water or human body temperature—absolute temperature is tied directly to the fundamental laws of physics and the motion of atoms. 1. The Concept of Absolute Zero Absolute temperature is the scale of thermal measurement

): This describes how pressure, volume, and temperature interact. It only functions correctly if is expressed in Kelvins. Absolute zero ( Unlike the Celsius or Fahrenheit

) is the point where that thermal motion reaches its quantum mechanical minimum. You can't get colder than absolute zero because you cannot have "less than zero" kinetic energy. 2. The Kelvin Scale