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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 6
26.
Mass transfer co-efficient is directly proportional to DAB0.5, according to __________ theory.
penetration
surface renewal
film
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Sand is dried in foundaries in a___drier.
rotary
fluidisedbed
vacuum
spray
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Which of the following employs an accessory known as 'drift eliminator' ?
Multiple effect evaporator.
Mechanical draft cooling tower.
Rotary dryer.
Rotating disc contactor.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Pick out the correct statement.
Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas.
The 'Hatta number' is important in problems involving gas absorption without chemical reaction.
For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion.
Total reflux in case of distillation operation requires infinite number of plates for a binary system separation.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Pick out the correct statement.
For identical gas flow rates, less pressure drop occurs through a plate tower than through a packed tower.
Plate column can handle greater liquid loads without flooding than packed column, but the liquid hold up is more in the case of plate column.
For the same duty, plate columns weigh less than packed columns.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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