5. Two white crystalline forms of phosporus. Both forms contain P4 moleculesbut the molecules are packed together in different ways. The α forms isalways obtained when the liquid freeze. However, below −76.9◦C, the α forms spontaneously convert into β form:P4(s,α) → P4(s,β)(a) Predict the signs of ∆H and ∆S for this process.(b) Predict which form of phosphorus has the more ordered crystallinestructure (has the smaller positional probability).
5. Two white crystalline forms of phosporus. Both forms contain P4 moleculesbut the molecules are packed together in different ways. The α forms isalways obtained when the liquid freeze. However, below −76.9◦C, the α forms spontaneously convert into β form:P4(s,α) → P4(s,β)(a) Predict the signs of ∆H and ∆S for this process.(b) Predict which form of phosphorus has the more ordered crystallinestructure (has the smaller positional probability).
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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5. Two white crystalline forms of phosporus. Both forms contain P4 molecules
but the molecules are packed together in different ways. The α forms is
always obtained when the liquid freeze. However, below −76.9
◦C, the α
forms spontaneously convert into β form:
P4(s,α) → P4(s,β)
(a) Predict the signs of ∆H and ∆S for this process.
(b) Predict which form of phosphorus has the more ordered crystalline
structure (has the smaller positional probability).
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