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Mass Transfer

Mass Transfer
Selectivity of the solvent used in solvent extraction should be

> 1
< 1
1

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Mass Transfer
Absorption accompanied with chemical reaction is exemplified by the absorption of

Benzol present in coke oven gas by wash oil
Ammonia in water
All of these
SO₂ in alkaline solution

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Mass Transfer
The percentage humidity is less than the relative humidity only at __________ percent humidity.

Hundred
None of these
Zero
Both zero and hundred

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Mass Transfer
(NSh/NRe.NSc) is termed in mass transfer operation as the

Stanton number
Peclet number
Thermal diffusivity
Momentum diffusivity

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Mass Transfer
In rectifying section of a continuous distillation column, the

None of these
Vapour is enriched with high boilers
Vapour is enriched with low boilers
Liquid is stripped of high boilers

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Mass Transfer
H₂S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H₂S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is

2
1.56
0.56
1

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