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1. The problem statement, all variables and given/known data

A system of particles is at equilibrium. What is the proportion of particles in the ground state?

3. The attempt at a solution

[tex]P(\epsilon_{s})=\frac{exp(-0/\tau)}{1+exp(\frac{-\epsilon_{s}}{\tau})+exp(\frac{-2\epsilon_{s}}{\tau})}[/tex]

Is that right? This is a really basic problem but I haven't dealt with this in a while. Thanks!

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# Homework Help: Elementary Boltzmann Statistics

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