3702Chemical EngineeringMedium
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________?
Akeff = k + kg
Bkeff = (kkg)1/2
Ckeff = (k+ kg)/2
D1/keff = 1/k + 1/kg
Correct answer
D. 1/keff = 1/k + 1/kg
Explanation
The correct answer is 1/keff = 1/k + 1/kg.