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, moles/m2, a: interfacial area per unit volume of tower) ?
Correct answer: A
Explanation
The height of a transfer unit based on the gas phase is proportional to G divided by the product of the mass transfer coefficient and interfacial area.