Mass Transfer

Molality is defined as the number of gm moles of solute per _________________ of solvent ?

Byadmin February 14, 2019August 22, 2021

Molality is defined as the number of gm moles of solute per _________________ of solvent ?

A. Litre
B. gm
C. Kg
D. m3

CHEMICAL ENGINEERING | Mass Transfer

In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

Question: In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)
[A].

decreases
[B].
increases
[C].
remains unchanged
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)
Mass Transfer

The assumption made in Elis method in distillation is that enthalpy concentration lines of vapor and liquid are __________________?

The assumption made in Elis method in distillation is that enthalpy concentration lines of vapor and liquid are __________________?

A. Parallel
B. Straight
C. Both parallel and straight
D. Neither parallel nor straight

Read More The assumption made in Elis method in distillation is that enthalpy concentration lines of vapor and liquid are __________________?
CHEMICAL ENGINEERING | Mass Transfer

For an absorber, both equilibrium and operating line will be straight for

Question: For an absorber, both equilibrium and operating line will be straight for
[A].

concentrated solution and non-isothermal operation.
[B].
dilute solution and non-isothermal operation.
[C].
dilute solution and isothermal operation.
[D].
concentrated solution and isothermal operation.

Answer: Option C

Explanation:

No answer description available for this question.

Read More For an absorber, both equilibrium and operating line will be straight for
Mass Transfer

Stefan’s law describes the mass transfer by________________?

Stefan’s law describes the mass transfer by________________?

A. Diffusion
B. Bulk flow
C. Both A. & B.
D. Neither A. nor B.

Read More Stefan’s law describes the mass transfer by________________?
Mass Transfer

According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B ? Assume that relative volatility (αAB = 2) does not change appreciably in the column ?

According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B ? Assume that relative volatility (αAB = 2) does not change appreciably in the column ?

A. 5
B. 9
C. 12
D. 28

Read More According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B ? Assume that relative volatility (αAB = 2) does not change appreciably in the column ?
Mass Transfer

Separation of the isotopes of helium for scientific investigations is done by_____________________?

Separation of the isotopes of helium for scientific investigations is done by_____________________?

A. Reverse osmosis
B. Thermal diffusion
C. Leaching
D. Solvent extraction

Read More Separation of the isotopes of helium for scientific investigations is done by_____________________?