Thiele Modulus Formula for 1st Order Catalytic Reaction | GATE Chemical Engineering 2017 Question - Examprev

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Chemical Engineering > GATE 2017 > Thiele Modulus

Consider a first order catalytic reaction in a porous catalyst pellet. Given R - characteristic length of the pellet; D_e - effective diffusivity; k_c - mass transfer coefficient; k₁ - rate constant based on volume of the catalyst pellet; C_s - concentration of reactant on the pellet surface. The expression for Thiele modulus is

A

(A) k_cR / D_e

B

(B) R √(k₁ / D_e)

C

(C) R √(k₁ C_s / D_e)

D

(D) R √(k₁ / D_e)

Correct : b

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Related Topics

catalytic reaction porous catalyst pellet first order reaction GATE Chemical Engineering 2017 Thiele modulus mass transfer catalysis chemical engineering gate diffusivity chemical engineering

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