Which outcome weakens graphene sheets at higher temperatures?

💡 Explanation

Increased thermal energy promotes phonon-assisted bond rotation at non-hexagonal defects. This weakens the lattice because these rotations disrupt the planar structure, therefore reducing the material's mechanical strength, rather than strengthening via defect annealing.

• Which outcome occurs when neutron moderation fails in uranium fuel rods?
• Which outcome occurs when a strong external electric field modifies the band structure of a Zener diode?
• Which mechanism inhibits electron flow when a semiconductor's bandgap increases?
• Which outcome reduces efficiency when steam rapidly cools?
• Which outcome is observed when one photon in an entangled pair undergoes polarization measurement?
• Which outcome occurs when a crystalline semiconductor contains impurities?