Definition:Temperature/Absolute

Definition

Absolute temperature is a measure of the amount of heat energy in a body.

It is defined as:

$T = \dfrac 1 k \paren {\dfrac {\partial U} {\partial \ln g} }$

where:

$k$ is a constant that relates the mean kinetic energy and absolute temperature of the body $B$

$U$ is the total energy of $B$

$g$ is the number of possible states in which $B$ can be.

Dimension

Temperature is frequently, at elementary levels at least, considered as one of the fundamental dimensions of physics.

In dimensional analysis it is usually assigned the symbol $\Theta$.

Sources

• 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): absolute temperature