## Boron Triflouride Degeneracy [ENDORSED]

Boltzmann Equation for Entropy: $S = k_{B} \ln W$

Tim Foster 2A
Posts: 73
Joined: Fri Sep 29, 2017 7:07 am

### Boron Triflouride Degeneracy

Does Boron Triflouride have a degeneracy of one? Further implying that at T=0, it has no entropy?

Chem_Mod
Posts: 18400
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 435 times

### Re: Boron Triflouride Degeneracy  [ENDORSED]

Yes, if we imagine there is only one configuration available for the boron trifluoride. In reality, even different isotopes present in the perfect crystal would be enough to increase the entropy to a nonzero value at T = 0. For the purposes of a toy problem, if we assume there is only one orientation of the boron trifluoride, yes, the number of microstates is 1N.

Return to “Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy”

### Who is online

Users browsing this forum: No registered users and 1 guest