Download Aptitude Crack
img not found img not found

Mass Transfer

Q1: Pick out the wrong statement.

A Mechanical agitation is required, if the system has low interfacial tension.

B Seive tray towers are generally used for systems having low interfacial tension.

C When Henry's law constant is very small, then the mass transfer rate is controlled by the gas film resistance.

D Taylor-Prandtl analogy for heat and mass transfer considers the transfer through both laminar and turbulent layers.

ANS:A - Mechanical agitation is required, if the system has low interfacial tension.

The wrong statement is: "When Henry's law constant is very small, then the mass transfer rate is controlled by the gas film resistance." In fact, when Henry's law constant is very small, it implies that the solute is highly soluble in the solvent. In this case, the mass transfer rate is usually controlled by the liquid film resistance, not the gas film resistance. Henry's law constant is a measure of how much a gas solute will dissolve in a liquid solvent, and a small Henry's law constant indicates high solubility, meaning that the gas solute will readily dissolve into the liquid phase. Therefore, the correct statement should be that the mass transfer rate is controlled by the liquid film resistance.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.