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Which risk increases when polymers exceed glass transition?

A)Decreased tensile strength
B)Enhanced material toughness
C)Increased thermal conductivity
D)Enhanced corrosion resistance

💡 Explanation

Thermoplastics weaken because *increased molecular chain mobility* causes reduced intermolecular forces at temperatures above the glass transition. Increased failure risk is due to decreased tensile strength, therefore reducing material integrity, rather than altering thermal or corrosion properties.

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