A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by__________________? | MCQ Hive

Chemical Engineering Chemical Reaction

Q A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by__________________?

A A. Diffusion within the pellet
B B. Reaction
C C. External mass transfer
D D. None of the above

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