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Mass Transfer

Mass Transfer
Schmidt number is given by

Re.Pe
Μ/ρDAB
Sh x Pe
Re/Pe

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Mass Transfer
Which of the following is not a batch drier?

Agitated pan drier
Vacuum shelf drier
Truck drier
Fluidised bed drier

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Mass Transfer
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Remains unaffected
Increases Linearly
Decreases
Increases

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Mass Transfer
It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

51 min
94 min
15 min
71 min

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Mass Transfer
Raoult's law is applicable to the

Non-ideal gases
Real solutions
Ideal solutions
Mixture of water and alcohol

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

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

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