The drying time between fixed moisture contents within the ‘constant rate period’ is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid) ?

Question: Langmuir equation is associated with
[A].

leaching

[B].

adsorption

[C].

steam distillation

[D].

multicomponent absorption.

Answer: Option B

Explanation:

No answer description available for this question.

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

Stanton

[B].

Sherwood

[C].

Peclet

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Chemisorption (chemical adsorption) is
[A].

same as “Van der Waals” adsorption.

[B].

characterised by adsorption of heat.

[C].

an irreversible phenomenon.

[D].

a reversible phenomenon.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Critical humidity of a solid salt means the humidity
[A].

above which it will always become damp.

[B].

below which it will always stay dry.

[C].

both (a) and (b).

[D].

above Which it will always become dry and below which it will always stay damp.

Answer: Option C

Explanation:

No answer description available for this question.