Mass Transfer MCQs

For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG: mass transfer co-efficient, mols/m2, a: in-terfacial area per unit volume of tower)

In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when

Cox chart is useful in the design of

The Schmidt number which is defined as, μ/ρ D, is the ratio of the

In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)

The film penetration model of mass transfer was enunciated by

Penetration model (theory) for mass transfer was enunciated by

Surface renewal model of mass transfer was enunciated by

At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes