Saturday, May 10, 2008

goddamn entropy



boltzmann formula is the very thing that made me fail my statistical thermodynamics class, but my inner nerd could not get any more excited seeing it on a car's license plate.

in case you are curious, boltzmann formula gives the entropy of a system in terms of W, the number of microstates that corresponds to the macrostates of that same system. k is the usual boltzmann constant of 1.38e-23 J/K.

W is given by



where N is the number of identical particles in the i-th state of that particular system. Ideal gas is assumed, of course.

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