IndiaBIX

Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 10
6.
Extraction of coffee from its seed is done by
liquid-liquid extraction.
leaching.
extractive distillation.
steam distillation.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
In azeotropic mixture, the equilibrium vapour composition is
more than liquid composition.
less than liquid composition.
same as liquid composition.
independent of pressure.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux
increases
decreases
remains same
may increase or decrease ; depends on system.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of
mass diffusivity to momentum diffusivity.
thermal diffusivity to mass diffusivity.
momentum diffusivity to thermal diffusivity.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)
D
D2
D0.5
1/D
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers