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Mass Transfer

Mass Transfer
Reverse osmosis is also called

Electrodilysis
Dialysis
Diffusion
Ultrafiltration

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Mass Transfer
With increase in pressure, the relative volatility for a binary system

Decreases
Either A or B, depends on the system
Increases
Remains same

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Mass Transfer
The Kundsen diffusivity is proportional to (where, T = absolute temperature)

T⁴
√T
T
T²

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Mass Transfer
The relative volatility of a binary mixture at the azeotropic composition is

> 1
1
∞

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Mass Transfer
Chemisorption (chemical adsorption) is

An irreversible phenomenon
Same as "Van der Waals" adsorption
A reversible phenomenon
Characterised by adsorption of heat

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Mass Transfer
If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is

0.31
0.017
0.215
0.107

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