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Mass Transfer

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

-1.5
0.6
-0.6
1.5

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Mass Transfer
The fixed cost of a distillation column at minimum reflux ratio is

Optimum
Infinite
Minimum
None of these

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Mass Transfer
At minimum reflux ratio for a given separation

Number of plates is zero
Separation is most efficient
Number of plates is infinity
Minimum number of the theoretical plates is required

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Mass Transfer
Sticky material can be dried in a __________ dryer.

Rotary
Tray
Fluidised bed
None of these

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Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Fuller
Activated carbon
Silica gel
Alumina

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Mass Transfer
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

NPr = NLe
NSc = NLe
NSc = 1
NSc = NPr = NLe

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