Mass Transfer

Which of the following parameters remains constant during chemical dehumidification ?

Byadmin February 14, 2019August 22, 2021

Which of the following parameters remains constant during chemical dehumidification ?

A. Dry bulb temperature
B. Partial pressure of vapour
C. Wet bulb temperature
D. None of these

Mass Transfer

The caking of crystals can be prevented by _____________________?

The caking of crystals can be prevented by _____________________?

A. Maintaining high critical humidity
B. Maintaining low critical humidity
C. Coating the product with inert material
D. Both A. and C.

Read More The caking of crystals can be prevented by _____________________?
Mass Transfer

If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is________________?

If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is________________?

A. 0.31
B. 0.107
C. 0.017
D. 0.215

Read More If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is________________?
Mass Transfer

Rayleigh equation applies to _________________ distillation ?

Rayleigh equation applies to _________________ distillation ?

A. Differential
B. Flash
C. Equilibrium
D. Molecular

Read More Rayleigh equation applies to _________________ distillation ?
Mass Transfer

Molecular diffusivity of a liquid__________________?

Molecular diffusivity of a liquid__________________?

A. Increases with temperature
B. Decreases with temperature
C. May increase or decrease with temperature
D. Is independent of temperature

Read More Molecular diffusivity of a liquid__________________?
CHEMICAL ENGINEERING | Mass Transfer

__________ equation applies to diffusivities in liquids.

Question: __________ equation applies to diffusivities in liquids.
[A].

Gilliland
[B].
Hirschfelder
[C].
Wilke and Chang
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More __________ equation applies to diffusivities in liquids.
Mass Transfer

_____________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid ?

_____________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid ?

A. Dew point
B. Bubble point
C. Dry bulb temperature
D. Wet bulb temperature

Read More _____________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid ?

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