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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Cylinder
Freeze
Drun
Rotary

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Mass Transfer
Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

Lower than
Higher than
Either same or higher than
Same as

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Mass Transfer
Azeotropic distillation is employed to separate

Mixture with very high relative volatility
Constant boiling mixture
High boiling mixture
Heat sensitive materials

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Mass Transfer
As per Gilliland's equation, the diffusivity is

Dependent on the molecular volume & molecular weight of components
All of these
Directly proportional to 'T1.5'
Inversely proportional to 'P'

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Mass Transfer
Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be

Both A & B
Dehumidified
Humidified
Cooled

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Mass Transfer
Molecular seives are porous

None of these
Synthetic zeolites crystals/metal alumino-silicates
Alumina
Silica

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