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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 2
1.
The McCabe Δ L law states that the
molar heats of vaporisation of components are nearly equal.
linear crystal growth rate depends on the degree of supersaturation.
linear crystal growth rate does not depend on the crystal size.
linear crystal growth rate depends on the crystal size.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Bollman extractor
is a static bed leaching equipment.
is used for extraction of oil from oilseed.
is a centrifugal extractor.
employs only counter-current extraction.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The relation, Sc = Pr = 1, is valid, when the mechanism of __________ ansfer is same.
heat and mass
mass and momentum
heat and momentum
heat, momentum and mass
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
A coalescer in a mixer-settler liquid-liquid extraction coloumn
comprises of thin bed of substances of extended surface having high porosity.
helps in increasing the bubble size entering the settler.
helps in increasing the settling rate of the bubbles.
all 'a', 'b', & 'c'.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will
increase
decrease
remain same
data insufficient, can't be predicted
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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