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Mass Transfer

Mass Transfer
What is the reflux ratio at total reflux?

Data insufficient
Zero
Infinity
Unity

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Mass Transfer
Mass transfer co-efficient 'K' according to penetration theory varies with mass dif-fusivity as

D0.5
D1.5
D
1/D

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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
L/mG is the expression for

Brinkman number
Slope of operating line in stripper
Slope of operating line in absorber
Absorption factor

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

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

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Mass Transfer
Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation.

None of these
Vacuum
High pressure
Atmospheric

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