Mass Transfer - Practice Test

[#226] Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

(A) Viscosity

(B) Density

(C) Solubility

(D) Relative volatility

Correct Answer

(C) Solubility

[#227] Schmidt number is given by

(A) $$frac{mu }{{ ho ,{{ ext{D}}_{{ ext{AB}}}}}}$$

(B) Re × Pe

(C) Sh × Pe

(D) $$frac{{{ ext{Re}}}}{{{ ext{Pe}}}}$$

Correct Answer

(A) $$frac{mu }{{ ho ,{{ ext{D}}_{{ ext{AB}}}}}}$$

[#228] Which of the following unit operations makes use of Thiele-Geddes equation?

(A) Liquid-liquid extraction

(B) Solid-liquid extraction

(C) Multicomponent absorption with chemical reaction

(D) Multicomponent distillation

Correct Answer

(D) Multicomponent distillation

[#229] Solvent used in extractive distillation

(A) Is of low volatility

(B) Forms a low boiling azeotrope

(C) Forms a high boiling azeotrope

(D) Does not alter the relative volatility of the original components

(E) Changes the relative volatility of the original components

(F) Should be of high volatility

(G) Should form azeotropes with the original components

(H) All of the above

Correct Answer

(B) Forms a low boiling azeotrope
(E) Changes the relative volatility of the original components

[#230] __________ column is used in gas absorption process.

(A) Wetted wall

(B) Seive/perforated tray

(C) Bubble cap

(D) Packed

Correct Answer

(D) Packed

Mass Transfer - Study Mode

[#226] Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

Correct Answer

[#227] Schmidt number is given by

Correct Answer

[#228] Which of the following unit operations makes use of Thiele-Geddes equation?

Correct Answer

[#229] Solvent used in extractive distillation

Correct Answer

[#230] __________ column is used in gas absorption process.

Correct Answer