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← ScienceWhich outcome is most likely when a carbon nanotube exceeds tensile strength?
A)Covalent bond rupture propagates rapidly✓
B)Metallic conductivity becomes semiconducting
C)Van der Waals forces cause stiffening
D)Intercalation chemistry changes tube diameter
💡 Explanation
Nanotube failure initiates when stress surpasses the energy of covalent bonds, therefore bond rupture propagates as fracture rather than stiffening because nanotubes lack metallic character and radial expansion needs specific intercalation chemistry.
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