At the transition temperature of a crystalline solid, the substance exists:
Correct answer: C. In dynamic equilibrium between two crystalline forms
- A. In most stable geometric form
- B. Solid and liquid state
- C. In dynamic equilibrium between two crystalline forms
- D. In one solid geometrical form only
Explanation
Option C is correct because, from the thermodynamic standpoint, the transition temperature can be characterized by the temperature, T0, at which two crystalline phases can coexist.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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