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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Distillation column
Evaporator
Crystalliser
Dryer

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Mass Transfer
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

None of these
Always < 1
G/L
L/G

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Mass Transfer
McCabe-Thiele method of binary distillation does not assume that the

Molar latent heats of all components are equal
None of these
Sensible heat changes are negligible compared with latent heat changes
Heat of mixing is negligible

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

Thermal diffusivity
Momentum diffusivity
Peclet number
Stanton number

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Mass Transfer
The unit of volumetric diffusivity is

Cm²/sec
Cm²/seC₂
Cm/sec
Cm³/sec

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Mass Transfer
In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Decreases
And the heat required in reboiler decreases
Remains unaffected
Increases

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MORE MCQ ON Mass Transfer

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