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Mass Transfer

Mass Transfer
Humid volume, at a given temperature is a/an __________ function of humidity.

Logarithmic
Inverse
Linear
Exponential

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Mass Transfer
During the constant rate period of drying of a solid,

Increasing the air temperature decreases the drying rate
Increased air humidity decreases the rate of drying
Surface evaporation of unbound moisture occurs
None of these

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Mass Transfer
Reboiler is considered as one theoretical plate, because

Of the assumption that vapour and liquid leaving the reboiler are in equilibrium
Vapour is recycled to the column
None of these
Reboiler itself contains one plate

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Mass Transfer
Which of the following is not a continuous leaching equipment?

Pachuka tank
Bollman extractor
Hydrocyclones
Kennedy extractor

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Mass Transfer
Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.

Indirect tray
Freeze
Spray
None of these

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

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

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