(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I need to calculate dS/dU for a solid when then system is in thermal equilibrium.

Na=100

Nb=10

U=20e

2. Relevant equations

I rearranged the equation to find that Ds/Du=kb(1/omega)(dOMEGA/dU)

3. The attempt at a solution

I am not sure how to go about this because I am not sure when the system is in thermal equilibrium and how to find (dS/dU) for the equation. any help would be greatly appreciated.

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# Homework Help: Thermal equilibrium of system

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