Molecular level presentation

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Kinetic Theory

According to the elementary kinetic theory of matter, the molecules of a substance are in constant motion. This motion depends on the average kinetic energy of molecules, which depends in turn on the temperature of the substance. Furthermore, the collisions between molecules are perfectly elastic except when chemical changes or molecular excitations occur.

See Main Article Kinetic theory

Intermolecular Forces

See Main Article Intermolecular forces

Boltzmann Transport Equation

See Main Article Boltzmann transport equation

Cohesion and Adhesion

See Main Article Cohesion and adhesion

Enthalpy and Energy

See Main Article Enthalpy and energy