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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 6
1.
When both the fluids flow concurrently in an absorber, the slope of the operating line is
- ve
+ ve
1
-1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
The percentage humidity is less than the relative humidity only at __________ percent humidity.
zero
hundred
both zero and hundred
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Back-trapping in a distillation column
increases tray efficiency.
decreases tray efficiency.
reduces pressure drop.
is desirable, as it provides improved vapour-liquid contact.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.
less than
more than
same as
very much less
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Milk is dried usually in a __________ dryer.
freeze
spray
tray
rotary
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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