Which one of the following devices is not used for both the absorption as well as the liquidliquid extraction processes ?

Question: At minimum reflux ratio for a given separation
[A].

number of plates is zero.

[B].

number of plates is infinity.

[C].

minimum number of the theoretical plates is required.

[D].

separation is most efficient.

Answer: Option B

Explanation:

No answer description available for this question.

Question: During drying of a solid, the critical moisture content increases with
[A].

decreased drying rate

[B].

increased thickness of the solid

[C].

increased drying rate

[D].

both (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: For the same system, if the same liquid used in an absorber is decreased, the tower height will
[A].

increase

[B].

decrease

[C].

remain unaffected

[D].

decrease or increase ; depends on the type of liquid

Answer: Option A

Explanation:

No answer description available for this question.

Question: (NSh/NRe.NSc) is termed in mass transfer operation as the
[A].

Stanton number

[B].

Peclet number

[C].

thermal diffusivity

[D].

momentum diffusivity

Answer: Option A

Explanation:

No answer description available for this question.

Question: Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.
[A].

chemical properties

[B].

physical properties

[C].

degree of turbulence

[D].

interfacial area

Answer: Option A

Explanation:

No answer description available for this question.