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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 6
11.
Which of the following is not a unit of mass transfer co-efficient ?
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The falling rate period in the drying of a solid is characterised by
increase in rate of drying.
increasing temperatures both on the surface and within the solid.
decreasing temperatures.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
In which of the following unit operations, the selectivity is an important parameter ?
Distillation
Solvent extraction
Absorption
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Which of the following is an undesirable characteristic for the solvent used in gas absorption ?
Low vapor pressure
Low viscosity
High gas solubility
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Which of the following equipments is not used for liquid dispersion ?
Wetted wall towers
Packed towers
Venturi scrubbers
Agitated vessels
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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