Kelvin (K)

Definition

Kelvin (K) is the SI unit of thermodynamic temperature. It is one of the seven base units in the International System of Units (SI).

5 Must Know Facts For Your Next Test

1. The Kelvin scale starts at absolute zero, where all molecular motion stops.
2. One kelvin is defined as 1/273.16 of the thermodynamic temperature of the triple point of water.
3. The Kelvin scale does not use degrees; it is simply 'kelvin.'
4. To convert Celsius to Kelvin, add 273.15 to the Celsius temperature.
5. Kelvin is essential for scientific measurements because it provides an absolute reference point.

Related terms

Celsius:

A temperature scale where water freezes at 0 degrees and boils at 100 degrees under standard conditions.

Absolute Zero:

The lowest possible temperature, 0 K, where molecular motion ceases.

Thermodynamic Temperature: Temperature measured on an absolute scale based on fundamental physical laws.