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← ScienceWhich mechanism governs the reduced thermal conductivity in amorphous solids?
A)Phonon scattering by lattice imperfections✓
B)Reduced electron-phonon interactions
C)Increased photon mean free path
D)Enhanced energy transport by electrons
💡 Explanation
Amorphous solids lack long-range order, therefore phonon transport is impeded via phonon scattering by lattice imperfections because the phonons cannot propagate efficiently down the structure, resulting in lower thermal conductivity rathe than direct transfer of energy.
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