A first order gaseous phase reaction is catalysed by a non-porous soli – McqOptions

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1.	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.	keff = k + kg
B.	keff = (k+ kg)/2
C.	keff = (kkg)1/2
D.	1/keff = 1/k + 1/kg
Answer» E.

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