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← ScienceWhich outcome accelerates when sodium chloride crystal defects increase?
A)Ionic conductivity substantially increases✓
B)Crystal hardness abruptly plateaus
C)Dielectric breakdown voltage rises
D)Thermal expansion coefficient reduces
💡 Explanation
Increased defects create more mobile ion vacancies; therefore, more ions can migrate, increasing the ionic conductivity, because vacancy diffusion provides pathways. Conductivity increases, rather than other properties changing significantly, due to charge carrier availability.
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