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Mass Transfer

Mass Transfer
In case of liquids, the binary diffusivity is proportional to (where, T = temperature)

1/T
√T
T²
T

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Mass Transfer
Which of the following is an undesirable property in a tower packing?

Large weight of liquid retained
Large surface per unit volume
Large free cross-section
Low weight per unit volume

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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

Latent heat
Specific heat
Humid heat
Sensible heat

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Mass Transfer
The dew point of a saturated gas phase equals the __________ temperature.

Room
None of these
Wet bulb
Gas

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Mass Transfer
With increase in temperature, the rate of leaching increases, because the

None of these
Thermal conductivity of solute increases
Viscosity of solvent decreases
Diffusivity of solute increases

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Mass Transfer
When the feed to a distillation column is a saturated liquid, slope of the feed line is

Infinity
Zero
Unity
None of these

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