Physics · Statistical Mechanics
A system has two energy levels with energies ε and 2ε. The lower level is 4-fold degenerate while the upper level is doubly degenerate. If there are N non-interacting classical particles in the system, which is in thermodynamic equilibrium at a temperature T, the fraction of particles in the upper level is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 112eε / kBT - 4e2ε / kBT
- 212eε / kBT + 4e2ε / kBT
- 311 + 2eε / kBT✓
- 411 + eε / kBT
Correct answer
11 + 2eε / kBT
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