Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Molal

Percentage

None of these

Relative

Molal

Percentage

None of these

Relative

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Mass Transfer
The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ?

Both liquid and gas side

Interfacial

Liquid side

Gas side

Both liquid and gas side

Interfacial

Liquid side

Gas side

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Mass Transfer
Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are

8

1

9

10

8

1

9

10

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Mass Transfer
Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law

Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law

Only vapor phase follows Raoult's law

Only liquid phase obeys Dalton's law

Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law

Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law

Only vapor phase follows Raoult's law

Only liquid phase obeys Dalton's law

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Mass Transfer
Critical humidity of a solid salt means the humidity

Above which it will always become damp

Above Which it will always become dry and below which it will always stay damp

Below which it will always stay dry

Both A and B

Above which it will always become damp

Above Which it will always become dry and below which it will always stay damp

Below which it will always stay dry

Both A and B

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Mass Transfer
Schmidt number is given by

Re.Pe

Μ/ρDAB

Sh x Pe

Re/Pe

Re.Pe

Μ/ρDAB

Sh x Pe

Re/Pe

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Mass Transfer

Mass Transfer Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Mass Transfer The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ?

Mass Transfer Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Mass Transfer Critical humidity of a solid salt means the humidity

Mass Transfer Schmidt number is given by

Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Mass Transfer
The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ?

Mass Transfer
Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Mass Transfer
Critical humidity of a solid salt means the humidity

Mass Transfer
Schmidt number is given by