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Use Boltzmann distribution to solve this problem.
A system consists of 3, 000 particles that can only occupy two energy levels: a nondegen-
erate ground state of 0.052 eV and a threefold degenerate excited state at 0.156 eV. If
T = 900 K,
(a) find the number of particles at each energy level.
(b) what is the total energy of the system?

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