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← ScienceWhich mechanism increases entropy when amorphous silicon transitions to polycrystalline silicon at high temperature?
A)Increased lattice arrangement disorder
B)Decreased phonon scattering frequency
C)Release of latent heat of crystallization✓
D)Reduction in dangling bond density
💡 Explanation
When amorphous silicon crystallizes, the release of latent heat of crystallization occurs because the transition from a disordered to an ordered state releases energy, increasing the microstate count accessible in the surroundings. Therefore, entropy increases due to heat transfer, rather than from disorder as the crystalline form has higher structural order
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