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Mass Transfer

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

μ²
1/μ
√μ
μ

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Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Spray
Bubble
Packed
Tray

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Mass Transfer
Steam distillation is used to separate

High boiling substances from nonvolatile impurities
Heat sensitive materials
Mixtures of low relative volatility
Azeotropes

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Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

K₂CO₃
Vacuum gas oil
Ethanolamine
HCl

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Mass Transfer
Ordinary diffusion process is also called __________ diffusion.

Thermal
Concentration
Forced
Pressure

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Mass Transfer
Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a

Higher wet bulb temperature
Higher dew point
Higher absolute (specific) humidity
Higher relative humidity

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