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← ScienceWhich outcome occurs when rapid cycling induces hydrogen absorption in a palladium membrane?
A)Embrittlement lowers fracture toughness✓
B)Increased catalytic activity
C)Enhanced electrical conductivity
D)Higher thermal expansion coefficient
💡 Explanation
Extensive charging and discharging leads to hydrogen embrittlement because repeated lattice expansion/contraction induces microcrack propagation. Therefore, fracture toughness reduces rather than other properties altering significantly without sustained annealing at high temperatures.
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