Question

____________ is one which expresses the efficiency with which the energy dissipated in producing the fluid flow is used to transport material (and heat) to the catalytic surface.

(a) Normalized time

(b) Le Goff number

(c) Reynolds number

(d) Fractional conversion

I have been asked this question in an interview for internship.

I'd like to ask this question from Immobilized Enzymes topic in portion Immobilized Enzymes and their Uses of Enzyme Technology

Answer 1

Right choice is (b) Le Goff number

Easiest explanation: Le Goff number is one which expresses the efficiency with which the energy dissipated in producing the fluid flow is used to transport material (and heat) to the catalytic surface. Fractional conversion is given by X = 1 – S/S0. The normalized time is relative to the time that would be required to convert all the substrate if the enzyme acted at Vmax throughout, the actual time for complete conversion. Reynolds number relates to inertial force due to flow of solution to the viscous force resisting that flow.