Question

Difference between classical and quantum theory of paramagnetism

Answer 1

Answer:

1. The classical theory of mechanics is a theory that describes the motion of a macroscopic object. The type of macroscopic object may vary from projectiles to astronomical objects such as space crafts. The events of the movement are predictable according to classical theory.
2. Quantum theory is a theory that describes the nature of objects at the atomic level. According to quantum theory, energy, momentum, and angular momentum are discrete values; we call it “quantized”. Here, objects have both wave and particle nature. Sometimes, this is the only theory that can describe the behaviors of subatomic particles – electrons, protons, etc.

The key difference between classical theory and quantum theory is that classical theory describes the nature of macroscopic level, whereas quantum theory describes the nature of microscopic level.

The classical theory and quantum theory are very important branches in physical chemistry since we can use them to describe the behavior of objects. There is a significant difference between classical theory and quantum theory, including the predictability of events as well as the object that is considered, i.e. classical theory is applied for macroscopic objects where the quantum theory describes the behavior if microscopic.