Chemical Engineering > GATE 2016 > Thiele Modulus
A porous pellet with Pt dispersed in it is used to carry out a catalytic reaction. Following two scenarios are possible. Scenario 1: Pt present throughout the pores of the pellet is used for catalyzing the reaction. Scenario 2: Pt present only in the immediate vicinity of the external surface of the pellet is used for catalyzing the reaction. At a large value of Thiele modulus, which one of the following statements is TRUE?
A
(A) Since the reaction rate is much greater than the diffusion rate, Scenario 1 occurs
B
(B) Since the reaction rate is much greater than the diffusion rate, Scenario 2 occurs
C
(C) Since the reaction rate is much lower than the diffusion rate, Scenario 1 occurs
D
(D) Since the reaction rate is much lower than the diffusion rate, Scenario 2 occurs

Explanation

Correct : b

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