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← ScienceWhich outcome accelerates when impurities disrupt a crystal's structure?
A)Increased rate of chemical corrosion✓
B)Enhanced thermal conductivity efficiency
C)Improved semiconductor doping precision
D)Reduced sensitivity to mechanical stress
💡 Explanation
The corrosion rate increases because impurity atoms promote galvanic microcells along grain boundaries, driving electrochemical reactions due to increased surface free energy and reduced passivation. Therefore, overall corrosion accelerates, rather than other processes like enhanced conductivity under similar stress conditions.
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