Balls on a vibrating plate

Derivation of the Maxwell-Boltzmann distribution function

The Maxwell-Boltzmann distribution function of the molecular speed of ideal gases can be derived from the barometric formula. This article shows the derivation.
Schematic illustration of an evaporation process

Why do liquids evaporate?

This article provides answers to the following questions, among others: How can the evaporation of liquids be explained?Why does a cooling effect occur during evaporation?Why does...
Mean free path

Mean free path & collision frequency

The mean free path is the average distance a particle travels without colliding with other particles! Learn more about the mean free path in this article!
Degrees of freedom of a molecule

Internal energy & heat capacity

This article provides answers to the following questions, among others: What is the internal energy of a gas?What are the characteristics of the thermal...