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### Value of Variable Kb

Posted: Sun Feb 10, 2019 11:51 am
In class when we were discussing molecules, possible positions, and residual entropy, we did a calculation with the equation: S = KblnW.
In the equation, Kb was equal to 1.381 x 10^-23 J/K.

Where did we get the value for Kb and what exactly IS Kb?

Thanks, y'all!

### Re: Value of Variable Kb

Posted: Sun Feb 10, 2019 1:06 pm
Kb is Boltzmann's constant. It is provided on the formula sheet.

### Re: Value of Variable Kb

Posted: Sun Feb 10, 2019 1:09 pm
From my understanding, Kb is the Boltzmann constant, and is derived from the gas constant R divided by Avogadro's number. I don't think you need to know this though, as it is on the formula sheet!

Hope this helps!

### Re: Value of Variable Kb

Posted: Sun Feb 10, 2019 1:17 pm
KB is the Boltzmann constant and it provides a measure of the amount of energy (i.e., heat) corresponding to the random thermal motions of the particles making up a substance. The link below sends you to a video if you want to learn more about it.