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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 10
21.
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are
straight
parallel
both (a) & (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Which of the following operations does not involve leaching ?
Dissolving gold from ores.
Dissolving pharmaceutical products from bark or roots.
Dissolving sugar from the cells of the beet.
Removing nicotine from its water solution by kerosene.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The recovery of pencillin from the acidified fermentation broth is done by
distillation
evaporation
absorption
liquid extraction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Unit operation involved in the prilling of urea is
evaporation
drying
crystallisation
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Molecular seives are porous
alumina.
silica.
synthetic zeolites crystals/metal alumino-silicates.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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