Mass Transfer

Rate of leaching increases with increasing______________________?

Byadmin February 18, 2019August 22, 2021

Rate of leaching increases with increasing______________________?

A. Temperature
B. Viscosity of solvent
C. Pressure
D. Size of the solid

CHEMICAL ENGINEERING | Mass Transfer

In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,

Question: In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,
[A].

inversely
[B].
linearly
[C].
exponentially
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,
Mass Transfer

Inside the distillation column, the________________________?

Inside the distillation column, the________________________?

A. Driving force for the vapour flow is the pressure drop
B. Liquids are not always at their bubble points
C. Pressure increases gradually from bottom to the top of the column
D. None of these

Read More Inside the distillation column, the________________________?
CHEMICAL ENGINEERING | Mass Transfer

Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time)

Question: Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time)
[A].

(De.t)1/2
[B].
(De/t)1/2
[C].
(4De/πt)1/2
[D].
(4De/t)

Answer: Option C

Explanation:

No answer description available for this question.

Read More Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time)
CHEMICAL ENGINEERING | Mass Transfer

Co-current absorbers are usually used when the gas to be dissolved in the liquid is

Question: Co-current absorbers are usually used when the gas to be dissolved in the liquid is
[A].

sparingly soluble
[B].
highly soluble
[C].
a pure substance
[D].
a mixture

Answer: Option C

Explanation:

No answer description available for this question.

Read More Co-current absorbers are usually used when the gas to be dissolved in the liquid is
Mass Transfer

In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be_____________________?

In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be_____________________?

A. At ground level
B. 2 metres above the ground
C. 5 metres above ground
D. 10 metres above ground

Read More In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be_____________________?
Mass Transfer

The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if___________________?

The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if___________________?

A. NSc = 1
B. NSc = NPr = NLe
C. NPr = NLe
D. NSc = NLe

Read More The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if___________________?

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