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← ScienceWhich consequence results when van der Waals bonding weakens in a high-density polyethylene (HDPE) pipe?
A)Decreased tensile strength develops✓
B)Increased chemical reaction resistance
C)The material becomes more brittle
D)Higher glass transition temperature
💡 Explanation
Decreased tensile strength develops because weakened van der Waals forces lessen inter-molecular attraction, facilitating easier chain slippage at lower stress, rather than the material retaining hardness or increased chemical inertness, because those properties depend on covalent bond strength.
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