Statistical Thermodynamics

The microscopic approach that combines kinetic theory and quantum mechanics is known as statistical thermodynamics. Its put and role inside the framework of physical sciences might be explained via a classification depend on  

• The number of particles included,
• The particle size, and
• The particle velocity.

Newtonian mechanics is the learning of a small number of particles of moderate size moving with temperate velocities. Quantum mechanics is the study of very minute particles. Statistical mechanics is the study of many particles. Astronomy is the study of very big particles. Relativity is the study of very quickly moving particles. Therefore statistical thermodynamics, that is the study of very minute particles, is a combination of statistical mechanics and quantum mechanics. The statistical mechanics asks how the particles distributed between systems permitted energy levels. Quantum mechanics inquires, what are such permitted energy levels?