MICRO AND MACRO STATES IN STATISTICAL PHYSICS
Microscopic details (microstates) rule the chaos: Statistical physics uses them to understand macroscopic properties.
Macrostates in Statistical Physics
- In statistical mechanics, the macrostate is something big is called a macro. In the field of statistical physics, a macrostate is a system with a lot of particles.
- Macrostate is used in physics to describe a gas system inside a cylinder or any other object. This is because there are a lot of molecules in this gas stream.
Microstates in Statistical Physics
- There are different ways to order the particles in a macrostate.
- Every set-up is a microstate.
- The number of microstates in a system is equal to the number of ways that its pieces can be put together.
- This is easy to understand with this physics example of a macrostate and a microstate.
- In statistical mechanics, microstates are very important.
- We can figure out how a thermodynamic system works by looking at its big-picture factors, such as its volume, temperature, and pressure.
- However, we can't know some features of the system, like its entropy, unless we know how the tiny particles inside it move.
- So, we need to look at a thermodynamic system's microstates.
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