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Mass Transfer

Mass Transfer
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

-ve
∞
+ve

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Mass Transfer
Large scale drying of wheat is done in a __________ dryer.

Spouted bed
Tray
Vacuum rotary
Fluidised bed

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Mass Transfer
During drying of a solid, the critical moisture content increases with

Decreased drying rate
Increased thickness of the solid
Both B and C
Increased drying rate

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Mass Transfer
The Hatta number is important in

Gas absorption without chemical reaction
Binary distillation
Gas absorption with chemical reaction
Multicomponent distillation

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Mass Transfer
In liquid-liquid extraction, the number of phases at plait point is

4
2
1
3

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

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

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