An example of elution is______________________?

Byadmin February 18, 2019August 22, 2021

An example of elution is______________________?

A. Separation of uranium oxide from its ore by H2SO4 in a Pachuca tank
B. Separation of sugar from sugar beet by hot water
C. Dissolution of tannin out of tree barks by water
D. Recovery of vegetable oils from seeds

Mass Transfer

The drying time between fixed moisture contents within the ‘constant rate period’ is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid) ?

The drying time between fixed moisture contents within the ‘constant rate period’ is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid) ?

A. √T
B. T
C. T1.5
D. T3

Read More The drying time between fixed moisture contents within the ‘constant rate period’ is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid) ?
CHEMICAL ENGINEERING | Mass Transfer

Which of the following T-H diagram is valid for dehumidification operation ?

Question: Which of the following T-H diagram is valid for dehumidification operation ?
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Read More Which of the following T-H diagram is valid for dehumidification operation ?
Mass Transfer

At what value of reflux ratio, number of theoretical plates in a distillation column is minimum ?

At what value of reflux ratio, number of theoretical plates in a distillation column is minimum ?

A. 0
B. 1
C. ∞
D. < 1

Read More At what value of reflux ratio, number of theoretical plates in a distillation column is minimum ?
CHEMICAL ENGINEERING | Mass Transfer

A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,

Question: A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,
[A].

composition of vapors and that of liquid do not vary throughout the column.
[B].
reboiler load and condenser load are minimum.
[C].
the top and bottom compositions are unchanged with and without total reflux.
[D].
the top and bottom compositions correspond to the maximum enrichment available.

Answer: Option D

Explanation:

No answer description available for this question.

Read More A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,
Mass Transfer

Air at a particular humidity is heated in a furnace. The new dew point_____________________?

Air at a particular humidity is heated in a furnace. The new dew point_____________________?

A. Decreases
B. Increases
C. Depends on the extent of heating
D. Remain unchanged

Read More Air at a particular humidity is heated in a furnace. The new dew point_____________________?
Mass Transfer

The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3) ?

The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3) ?

A. 500
B. 1200
C. 900
D. 800

Read More The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3) ?

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