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.

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.

Either same or higher than

Lower than

Higher than

Same as

Either same or higher than

Lower than

Higher than

Same as

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Mass Transfer
Fenske equation determines the

Optimum reflux ratio

Minimum number of theoretical plates

Maximum number of ideal plates

Height of the distillation column

Optimum reflux ratio

Minimum number of theoretical plates

Maximum number of ideal plates

Height of the distillation column

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Mass Transfer
__________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.

Dry bulb

None of these

Dew point

Wet bulb

Dry bulb

None of these

Dew point

Wet bulb

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Mass Transfer
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

6.89

8.25

8.89

10

6.89

8.25

8.89

10

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Mass Transfer
In physical terms, Schmidt number means

Thermal diffusivity/mass diffusivity

Momentum diffusivity/mass diffusivity

Mass diffusivity/thermal diffusivity

Thermal diffusivity/momentum diffusivity

Thermal diffusivity/mass diffusivity

Momentum diffusivity/mass diffusivity

Mass diffusivity/thermal diffusivity

Thermal diffusivity/momentum diffusivity

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Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.

Less than

More than

None of these

Equal to

Less than

More than

None of these

Equal to

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Mass Transfer

Mass Transfer Fenske equation determines the

Mass Transfer __________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.

Mass Transfer In physical terms, Schmidt number means

Mass Transfer Dry bulb temperature of the gas is __________ the wet bulb temperature.

Mass Transfer
Fenske equation determines the

Mass Transfer
__________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.

Mass Transfer
In physical terms, Schmidt number means

Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.