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Mass Transfer

Mass Transfer
At what percentage (by volume) of alcohol composition, it forms an azeotrope with water?

90
91.5
99
95

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

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

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

Minimum
Infinite
Optimum
None of these

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Mass Transfer
The relative saturation of an unsaturated mixture of gas and vapor is independent of the

Composition of the mixture
Nature of the vapor
None of these
Temperature of the mixture

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Mass Transfer
Berl saddle made of carbon cannot be used for

Alkalis
H₂SO₄
Oxidising atmosphere
SO₂

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Mass Transfer
The cooling effect in a cooling tower can not be increased by

Increasing the air velocity over the wet surfaces
Lowering the barometric pressure
Reducing the humidity of entering air
None of these

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