Chemistry Practice Problems Boltzmann Equation Practice Problems Solution: Two crystalline forms of white phosphorus are know...

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Solution: Two crystalline forms of white phosphorus are known. Both forms contain P4 molecules, but the molecules are packed together in different ways. The α form is always obtained when the liquid freezes. However, below -76.9°C, the α form spontaneously converts to the β form:P4 (s, α) → P4 (s, β)b. Predict which form of phosphorus has the more ordered crystalline structure (has the smaller positional probability).

Problem

Two crystalline forms of white phosphorus are known. Both forms contain P4 molecules, but the molecules are packed together in different ways. The α form is always obtained when the liquid freezes. However, below -76.9°C, the α form spontaneously converts to the β form:

P4 (s, α) → P4 (s, β)

b. Predict which form of phosphorus has the more ordered crystalline structure (has the smaller positional probability).