Question: The table below contains conductivity data for a crystal of NaCl. Comment on the shape of a plot of ln(T) versus 1/T. Estimate the activation

The table below contains conductivity data for a crystal of NaCl. Comment on the shape of a plot of ln(σT) versus 1/T. Estimate the activation energy for vacancy migration and Schottky defect formation from your graph.

T (K) (S/cm-) T(K) (S/cm-) 550 1.6010 % 800 3.36x10-6 600 5.06x10-8 850 1.25x10-5 650 1.37x1077 900

T (K) (S/cm-) T(K) (S/cm-) 550 1.6010 % 800 3.36x10-6 600 5.06x10-8 850 1.25x10-5 650 1.37x1077 900 4.47x10-5 700 3.511077 950 1.47x104 750 9.9210-7 1000 4.3410 4

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