A first order irreversible reaction is carried out on a catalyst of characteristic dimension 0.2 cm and
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A first –order irreversible reaction is carried out on a catalyst of characteristic dimension 0.2 cm and effective diffusivity of 0.015 cm 2 /s. At 100 o C the intrinsic rate constant has been measured to be 0.93 s -1 with an activation energy of 20 kcal/mol.
a. For a surface concentration of 3.25 x10 -2 mol/L, what is the observed rate of reaction at 100 o C?
b. For the same reactant concentration, what is the observed rate of reaction at 150 o C? Assuming that Diffusivity is independent of temperature.
c. What value of the activation energy would be observed?
d. Compare values of the Thiele modulus at 100 o C and 150 o C.
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