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Mass Transfer

Mass Transfer
When the feed to a distillation column is a saturated liquid, slope of the feed line is

Infinity
None of these
Zero
Unity

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Mass Transfer
Make up water is required in a cooling tower to replace the water lost by

Blowdown and leakage
Drift
All of these
Evaporation

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Mass Transfer
In McCabe-Thiele method, at infinite reflux ratio

The overhead product is minimum
Both the operating lines coincide with diagonal
Both A & B
Neither A nor B

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Mass Transfer
Reboiler is considered as one theoretical plate, because

None of these
Of the assumption that vapour and liquid leaving the reboiler are in equilibrium
Reboiler itself contains one plate
Vapour is recycled to the column

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Mass Transfer
Physical absorption is

Both B & C
Accompanied by evolution of heat
A reversible phenomenon
An irreversible phenomenon

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Mass Transfer
In physical terms, Schmidt number means

Thermal diffusivity/momentum diffusivity
Momentum diffusivity/mass diffusivity
Mass diffusivity/thermal diffusivity
Thermal diffusivity/mass diffusivity

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