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Mass Transfer

Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

c
Gm
Litre
Kg

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Mass Transfer
For which of the following unit operations, Lewis number is of significance?

Humidification
Gas absorption
Adsorption
Binary distillation

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Mass Transfer
Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

Latent heat
Specific heat
Humid heat
Sensible heat

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Mass Transfer
HETP is numerically equal to HTU, only when the operating line

Lies above the equilibrium line
Lies below the equilibrium line
And equilibrium lines are parallel
Is far from the equilibrium line

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Mass Transfer
As the reflux ratio increases, the slope of the operating line for rectifying section

Data insufficient, cannot be predicted
Decreases
Remains constant
Increases

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Mass Transfer
When a multistage tray tower uses a minimum reflux ratio, it implies

Minimum trays and minimum reboiler heat load
Infinite trays and maximum reboiler heat load
Infinite trays and minimum reboiler heat load
Minimum trays and maximum reboiler heat load

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