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Mass Transfer

Mass Transfer
Rose oil is extracted from rose leaves using __________ distillation.

Low pressure
High pressure
Steam
Extractive

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Mass Transfer
The equipment used in the extraction of highly corrosive radio active liquids is

Mixer settler
Pulse column
Spray column
Baffle tower

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Mass Transfer
The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient)

KL/DA²
√(KL².DA)
KL².DA
KL²/DA

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Mass Transfer
In case of non-ideal gases and liquids, the molal diffusivity

Varies inversely as the pressure
Is independent of pressure
Is equal to the volumetric diffusivity
Varies directly as the pressure

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Mass Transfer
With increase in temperature, the leaching rate increases because of the

Decreased viscosity of liquid
Increased diffusivity
Both Decreased viscosity of liquid & Increased diffusivity
None of the listed here

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Mass Transfer
In case of absorption, both the operating and equilibrium lines will be straight for

Dilute solutions
None of these
Isothermal operation
Dilute solutions and isothermal operation

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