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Mass Transfer

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

K₂CO₃
Ethanolamine
Vacuum gas oil
HCl

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Mass Transfer
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Increases Linearly
Decreases
Increases
Remains unaffected

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Mass Transfer
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Increase
Remains same
Decrease
Depend on saturated boiling point; may increase or decrease

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Mass Transfer
In distillation columns, the number of bubble caps per tray primarily depends upon the

Allowable gas and liquid velocities
Allowable liquid velocity
Feed composition
Allowable gas velocity

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Mass Transfer
Which of the following solutions will follow Raoult's law most closely?

A solution of benzene, toluene and oxylene
A solution of polar organic compounds (not of homologs of a series)
35% solution of NH₃ in water
35% solution of camphor in water

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Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

Pressure
Both Pressure & Temperature
None of the listed here
Temperature

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