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Mass Transfer

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

Room
Gas
Wet bulb
None of these

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Mass Transfer
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

Large minimum liquid to gas (L/G) ratio
Large number of trays
All of these
Decreased solute solubility

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Mass Transfer
Berl saddle made of carbon cannot be used for

H₂SO₄
Alkalis
SO₂
Oxidising atmosphere

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Mass Transfer
In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of

0.6
-1.5
1.5
-0.6

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Mass Transfer
With increase in the concentration of the adsorbate, the integral heat of adsorption

Increases
Remains unchanged
May increase or decrease ; depends on the type of adsorbate
Decreases

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Mass Transfer
During constant rate drying period, vaporisation rate per unit drying surface area

Increases with time
Does not change with time
Does not affect the moisture content of the wet solid
Decreases with time

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