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### entropy equations

Posted: Fri Jan 20, 2017 11:27 pm
In class we talked about how $\Delta S= k_b ln\frac{W_2}{W_1} = k_b ln\frac{V_2}{V_1}$

does that mean W = V, and why is that?

### Re: entropy equations

Posted: Fri Jan 20, 2017 11:34 pm
I don't think it means volume is equal to work, but work is measured in the change in the volume of a system (the work done by the system or the work done to a system). I believe it is related to the relation q=-w, which is equal to nRT ln V2/V1. I believe thats how the W2/W1 becomes the V2/V1 in the equation.

### Re: entropy equations

Posted: Sat Jan 21, 2017 12:43 pm
But I don't think W is work? It's the W for degeneracy I believe

### Re: entropy equations

Posted: Sun Jan 22, 2017 10:02 am
Hey Teresa!

W is the degeneracy. Degeneracy identifies how many different configurations there are that have the same energy.

Therefore, you can imagine that if I double the volume of a gas I double the amount of configurations the molecules could obtain.