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Mass Transfer

Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.

Less than
Equal to
More than
None of these

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Mass Transfer
According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)

μ²
√μ
μ
1/μ

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Mass Transfer
High pressure at the bottom of a distillation tower handling heat sensitive materials results in

Thermal decomposition of bottoms
Increased relative volatility
Very efficient operation
Erosion of the tower

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

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

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Mass Transfer
A minimum boiling azeotrope is exemplified by

Water-isobutyl alcohol
None of these
Toluene-benzene
Acetone-carbon disulphide

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Mass Transfer
Humidification involves mass transfer between a pure liquid phase and a fixed gas, which is

Non-ideal in nature
Soluble in the liquid
Insoluble in the liquid
At a fixed temperature

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