To compute lnW in Boltzmann's equation, Stirling's approximation, lnN! = NlnN - N, is used.This converts the above equation to to:

The remaining empty sites after the A atoms have been placed on the lattice just accommodate the NB atoms of B. There is but one way that the rest of the sites can be filled with B atoms. Setting N = NAv (for a mole of solution), and dividing by NAv (to convert atom number to mole fraction) and substituting the above equation into Eq (7.35) yields Eq (7.10):

With this result in hand, substitution of Eqs (7.10) and (7.34) into Eq (7.33) gives:

Further progress requires expressing gex in terms of the composition.

Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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