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Mass Transfer

Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

Ethanolamine
K₂CO₃
Vacuum gas oil
HCl

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Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

Increasing pressure
No means
Increasing temperature
Decreasing pressure

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Mass Transfer
For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law.

Either A or B; depends on the gas
Decreases
Remains same
Increases

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Mass Transfer
Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are

8
9
10
1

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Mass Transfer
In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

None of these
Remains unchanged
Decreases
Increases

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Mass Transfer
In triangular co-ordinates, the ternery composition point falls __________ of the triangle.

Inside
On the sides
None of these
In the corners

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