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Mass Transfer

Mass Transfer
If f is defined as above, then which of the following applies to a feed at dew point?

F = 1
F > 1
F < 1
0 < f < 1

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Mass Transfer
Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

Specific heat
Latent heat
Humid heat
Sensible heat

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Mass Transfer
Packed column distillation is limited to the column __________ metres.

Neither A nor B
Diameter < 0.6
Height < 6
Both A & B

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Mass Transfer
As complete saturation of an adsorbent is approached, the differential heat of adsrop-tion approaches

Zero
Integral heat of adsorption
None of these
That of normal condensation

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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

0.001
100
4.605
9.21

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Mass Transfer
Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.

Sieve tray column
Packed tower
Bubble cap column
Agitated vessel

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