## Third Law

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

Victoria Luu - 1C
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

### Third Law

Could someone explain the Third Law of Thermodynamics? I'm getting confused by the textbook definition and Lavelle's :)

Aria Soeprono 2F
Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

### Re: Third Law

The third law states that entropy of a perfect crystal is zero at temperature absolute zero.

Cody Do 2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

### Re: Third Law

The Third Law of Thermodynamics describes a theoretical situation (it doesn't really exist). Essentially, it's saying that a perfect crystal (an item that is composed of molecules/atoms that are exactly the same and has only one possible alignment between molecules) is at 0 degrees Kelvin (the lowest possible temperature of the universe; nothing has ever reached this temperature), then entropy will be 0.

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