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Mass Transfer

Mass Transfer
__________ equation applies to diffusivities in liquids.

Wilke and Chang
Gilliland
None of these
Hirschfelder

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Mass Transfer
The most economical range of absorption factor is

1.25 to 2
2.5 to 3
2 to 2.5
5 to 10

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Mass Transfer
Equilibrium-moisture curves of different solids

Are same
None of these
Depend on the humidity of the gas
Are different

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Mass Transfer
Mass transfer co-efficient is defined as

Co-efficient = Flux/concentration difference
None of the listed here
Flux=concentration difference/co-effi-cient
Flux = Co-efficient/concentration difference

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Mass Transfer
Pick out the system with maximum boiling azeotrope at 1 atm.

Ethyl alcohol-water
Benzene-ethyl alcohol
None of these
Acetone chloroform

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Mass Transfer
Sodium bicarbonate is produced during soda ash manufacture using a __________ tower.

None of these
Packed
Baffle
Plate

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