Question

Which of the following correctly represents the Damkohler number for a first order reaction? (Where, τ is the space time)

(a) k

(b) τ

(c) \(\frac{1}{kτ}\)

(d) k τ

The question was posed to me in examination.

My question comes from Tanks in Series Model in division Compartment Models, Models for Non Ideal Reactors of Chemical Reaction Engineering

Answer 1

Correct option is (d) k τ

To elaborate: Damkohler number is the product of first order rate constant and space time. It is the measure of the degree of completion of reaction.