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Mass Transfer

Mass Transfer
If f = moles of vapour present per mole of feed, then the slope of feed line is

- f/(1 - f)
- 1/f
- (f - 1)/f
(1 - f)/f

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Mass Transfer
In the desorption of highly soluble gas from the liquid, the main resistance will be in the __________ phase.

Liquid
Neither A nor B
Gas
Both A & B

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Mass Transfer
Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Cost
Porosity
Durability
Size

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Mass Transfer
Mass transfer co-efficient varies as DAB0.5, according to the __________ theory.

Penetration
None of these
Surface renewal
Film

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Mass Transfer
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the

Mass transfer co-efficient
Kinematic viscosity
Volumetric diffusivity
Thermal diffusivity

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Mass Transfer
The dimension of diffusivity is same as that of the

Kinematic viscosity
Density
Velocity head
Molal concentration

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