A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by________________? | MCQ Hive

Chemical Engineering Chemical Reaction

Q A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by________________?

A A. Keff = k + kg
B B. Keff = (k+ kg)/2
C C. Keff = (kkg)1/2
D D. 1/keff = 1/k + 1/kg

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