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Mass Transfer

Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Packed
Pulse
Sieve plate
Bubble cap

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Mass Transfer
L/mG is the expression for

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

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Mass Transfer
The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

T³
T
T²
√T

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Mass Transfer
The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C.

> 25
< 25
-25
25

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Mass Transfer
Extraction of coffee from its seed is done by

Steam distillation
Liquid-liquid extraction
Leaching
Extractive distillation

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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
Erosion of the tower
Increased relative volatility
Very efficient operation

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MORE MCQ ON Mass Transfer

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