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Which 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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