Question

2) A table with diffusion rate data. Diffusion rate behavior follows the following mathematical form: D = D₀ exp(-Q/RT)

Diffusion Rate Data	Temp (oC)	1/T	Diffusion Coeff (m2/s)
	977	0.0008	4.00E-13
	855	0.00089	6.00E-14
	722	0.00101	3.50E-15
	636	0.0011	3.40E-16

a) Create a semi-log (base 10) plot of creep strain as a function of 1/T, again making sure to appropriately label and scale your data and graph. Label the figure and axes and provide the bestfit line, equation, and R² for the curve.

b) Use your best-fit-line to the data to determine the diffusion activation energy (Q) in J and pre-exponential constant (D₀) in m² /s.

Answer 1