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Which mechanism causes increased thermal conductivity in carbon nanotubes?

A)Quantized vibrational energy transport
B)Increased electron-phonon scattering
C)Enhanced molecular bond polarization
D)Reduced atomic surface imperfections

💡 Explanation

The increased thermal conductivity results from quantized vibrational energy transport, specifically phonons acting as energy carriers because phonon-phonon scattering is minimized in the highly ordered tubes, therefore heat moves efficiently, rather than through electron scattering which would reduce conductivity.

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