Chemical Reaction Engineering
When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as

ND = n/2
ND = (n + 1)/2
None of these
ND = n + 1

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Chemical Reaction Engineering
Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation?

There is no dynamic equilibrium between successive layer
The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process
Langmuir
None of these

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