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← ScienceWhich consequence results when free hydrogen concentrations increase within palladium metal?
A)Increased lattice parameter expansion occurs✓
B)Lowered cohesive energy becomes dominant
C)Resonant electron tunneling is enhanced
D)Decreased magnetic susceptibility becomes significant
💡 Explanation
Increased hydrogen concentration leads to lattice expansion because interstitial solid solution formation causes dislocations in the metal lattice. Therefore, the metal expands, rather than decreases because the electron tunneling and magnetism are less relevant to this metal reaction.
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