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Mass Transfer

Mass Transfer
Weight of 1 m³ of humid air as compared to 1 m³ of dry air, under the same conditions, is

More
Less
Same
Unpredictable

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Mass Transfer
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are

Both A & B
Straight
Neither A nor B
Parallel

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Mass Transfer
CO₂ can be absorbed by

Alumina
Heated charcoal
Hot cupric oxide
Cold Ca(OH)₂

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Mass Transfer
Which of the following has the same dimension as mass diffusivity?

Momentum flux
Both Momentum flux & Kinematic viscosity
Kinematic viscosity
Thermal diffusivity

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Mass Transfer
The Hatta number is important in

Multicomponent distillation
Binary distillation
Gas absorption without chemical reaction
Gas absorption with chemical reaction

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Mass Transfer
The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by

Neither A nor B
Both A & B
Lowering the total pressure
Raising the temperature

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