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Mass Transfer

Mass Transfer
All moisture in a non-hygroscopic material is the __________ moisture.

Equilibrium
Free
Unbound
Bound

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Mass Transfer
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

0.6
2
0.5
1

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Mass Transfer
As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Decrease
Can either increase or decrease, depends on the system
Remain unchanged
Increase

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Mass Transfer
When a multistage tray tower uses a minimum reflux ratio, it implies

Infinite trays and maximum reboiler heat load
Minimum trays and maximum reboiler heat load
Minimum trays and minimum reboiler heat load
Infinite trays and minimum reboiler heat load

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Mass Transfer
Large scale usage of flash distillation is practised in

Ammonia synthesis plant
Petroleum refinning
Polymerisation industry
Soap manufacturing

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Mass Transfer
To remove all the moisture from a wet solid it requires exposure to __________ air.

High temperature
Highly humid
Perfectly dry
None of these

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