## Boltzmann equation

Volume: $\Delta S = nR\ln \frac{V_{2}}{V_{1}}$
Temperature: $\Delta S = nC\ln \frac{T_{2}}{T_{1}}$

AlyssaYeh_1B
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Joined: Sat Aug 17, 2019 12:16 am

### Boltzmann equation

When would we use the Boltzmann equation? How does it relate to entropy?

Posts: 111
Joined: Thu Jul 25, 2019 12:17 am

### Re: Boltzmann equation

The Boltzmann equation is giving the residual entropy of the system. Entropy is the amount of "disorder" and the Boltzmann equation is sort of giving a statistical answer of all the possible orientations and positions of all the molecules in the system.

Myka G 1l
Posts: 100
Joined: Fri Aug 30, 2019 12:17 am

### Re: Boltzmann equation

You would only use the Boltzmann equation if the reaction is at 0K and no other forms of entropy are occurring. This equation measures the residual/positional entropy of molecules.

805394719
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Joined: Wed Sep 11, 2019 12:16 am

### Re: Boltzmann equation

The Boltzmann equation gives the relationship between the entropy of a system and the number of different ways or microstates that the system can be arranged on energy levels which is w.

nicolely2F
Posts: 149
Joined: Sat Sep 14, 2019 12:17 am

### Re: Boltzmann equation

The Boltzmann Equation gives a relationship between entropy S and degeneracy W. Degeneracy describes all the possible microstates (i.e. positions) that might be occupied by the molecules of a system. They're related because entropy is the tendency towards disorder, and degeneracy describes all the ways in which the elements of a system might be distributed. You'll be given the Boltzmann constant k(B) and probably the number of states. You'll then calculate entropy using S = k(B).ln W

Rida Ismail 2E
Posts: 139
Joined: Sat Sep 07, 2019 12:16 am

### Re: Boltzmann equation

The Boltzmann equation strictly talks about the residual entropy that is relating to degeneracy in disorder. The W represents the amount of micro states raise to the power of the number of particles. The Kb is the Boltzmann constant