# Question: Assume that Pt was dispersed

Assume that Pt was dispersed throughout the pore structure of the entire pellet in Problem 4.1 and apply the Weisz-Prater criterion to determine if mass transport limitations are expected. Do only one calculation using the lowest observed rate. Assume that the average pore diameter in the catalyst is 100 A˚ (10 A˚ = 1 nm), that Knudsen diffusion dominates, and that no external transport limitations occur (Cs = Co).

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