The diffusion coefficients for species A in metal B are given at two temperatures: T (°C) D (m²/s) 1020 7.60E-17 1260 7.49E-16 (a) Determine the value of the activation energy Qd (in J/mol). J/mol (b) Determine the value of Do. m²/s (Use scientific notation.) (c) What is the magnitude of D at 1170°C? m²/s (Use scientific notation.)

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The diffusion coefficients for species A in metal B are given at two temperatures:
T (°C)
D(m²/s)
1020
7.60E-17
1260
7.49E-16
(a) Determine the value of the activation energy Qd (in J/mol).
i
(b) Determine the value of Do.
J/mol
m²/s (Use scientific notation.)
(c) What is the magnitude of D at 1170°C?
m2/s (Use scientific notation.)
Transcribed Image Text:The diffusion coefficients for species A in metal B are given at two temperatures: T (°C) D(m²/s) 1020 7.60E-17 1260 7.49E-16 (a) Determine the value of the activation energy Qd (in J/mol). i (b) Determine the value of Do. J/mol m²/s (Use scientific notation.) (c) What is the magnitude of D at 1170°C? m2/s (Use scientific notation.)
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