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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 10
41.
NSc/NPr is called the
psychrometric ratio
Lewis number
Sherwood number
Stantan number
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
McCabe-Thiele method
uses molal units for material and energy balance.
uses weight fractions to express liquid and vapour composition.
can use any type of units.
is more accurate than Ponchan-Savarit method.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
The film penetration model of mass transfer was enunciated by
Gilliland
Toor and Marchello
Stefan
Fick
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The most economical range of absorption factor is
0 to 0.5
0 to 3
1.25 to 2
5 to 15
Answer: Option
Explanation:
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45.
Channelling is most severe
in towers packed with stacked packing.
in towers packed randomly with crushed solids.
in dumped packing of regular units.
at very high liquid flow rate.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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