College Physics III – Thermodynamics, Electricity, and Magnetism
Definition
The Kelvin scale is an absolute temperature scale starting at absolute zero, the point where all molecular motion ceases. It is used in scientific measurements and calculations due to its direct relationship with thermal energy.
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The internal energy present in a system due to its temperature, directly related to molecular motion.
\textdegree C (Celsius): A temperature scale based on the freezing and boiling points of water at standard atmospheric pressure, with units equal in size to those of the Kelvin scale but offset by -273.15.