Average Kinetic Energy (Gas)

K E_{a v g} = \frac{3}{2} k_{B} T

Average translational KE of gas molecule.

Variables

KE_avg

Average KE per molecule

Mean kinetic energy

k_B

Boltzmann constant

1.38×10⁻²³

J/K

Temperature

Absolute temperature

From equipartition: ½kT per DoF × 3 translational DoF.

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