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Chemical Engineering · Q385

Chemical Reaction Engineering

Engineering and GATE · Chemical Engineering · question 385

Q385

A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8 . Which of the following statement is true?

A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as . Which of the following statement is true?
A.
Inner catalyst core of radius does not participate in reaction
Answer
B.
Inner catalyst core of radius does not participate in reaction
C.
Inner catalyst core of radius does not participate in reaction
D.
Effectiveness factor for a zero order reaction can not be as it must always be 1

Answer: Option A

Solution

Answer: Option A
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