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Mass Transfer

Mass Transfer
Molality is defined as the number of gm moles of solute per __________ of solvent.

m³
Litre
Gm
Kg

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Mass Transfer
A good solvent used for absorption should not have very high

Vapor pressure
Viscosity
Freezing point
All of these

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Mass Transfer
Diameter of raschig rings used in packed tower in industry is normally around __________ inches.

8
12
2
18

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Mass Transfer
Rayleigh's equation applies to __________ distillation.

Flash
Steam
Continuous
Differential

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Mass Transfer
The boiling points of pure components of a binary system __________ with increase in total pressure of the system.

Decreases
Remains unchanged
Increases
May increase or decrease, depends on the system

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Mass Transfer
An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is

100
0.001
9.21
4.605

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