What is Number Density?
Number density (n) is the number of particles (atoms, molecules, or other entities) per unit volume. It's a fundamental quantity in:
- Gas physics
- Plasma physics
- Materials science
- Chemical kinetics
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Number density (n) is the number of particles (atoms, molecules, or other entities) per unit volume. It's a fundamental quantity in:
Number density relates to other physical properties:
Number density is crucial in:
Typical number densities:
n = N/V
where N is number of particles and V is volume
n = (ρNA)/M
where ρ is mass density, NA is Avogadro's number, M is molar mass
n = P/kT
where P is pressure, k is Boltzmann constant, T is temperature