Chemical Engineering - Mass Transfer

1.
In a binary system, separation is very efficient, when the relative volatility is
1
> 1
< 1
0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for
constant molal overflow
total reflux
constant relative volatility
all (a), (b) and (c)
Answer: Option
Explanation:
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3.
The binary diffusivity in gases does not depend upon the
pressure
temperature
nature of the components
none of these
Answer: Option
Explanation:
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4.
Berl saddle made of carbon cannot be used for
alkalis
SO2
H2SO4
oxidising atmosphere
Answer: Option
Explanation:
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5.
1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is
0.4
0.25
0.2
0.175
Answer: Option
Explanation:
No answer description is available. Let's discuss.