“Independent of local film thickness

Correct Answer:- Option-A

Question46:-The equilibrium distribution of a solute (A) between air and water is = 1.2 x. The concentration of A in the bulk air is 0.04 mole fraction and that in the bulk aqueous
phase is 0.025. What is the overall driving force on gas-phase basis ?

५0०३
80.01
0.04
0:0.02
Correct Answer:- Option-8
Question47:-Enthalpy of moist air having a dry-bulb temperature of 27°C and a humidity of 0.015 kg water vapourikg of dry air in kJ/kg ‏کا‎
‎۸:155
‎8-565
‎65.5
‎5:865

Correct Answer:- Option-C

Question48:-The following data were obtained for an absorption column : Gi, = 90 kmol/h; ‏ييل‎ = 100 kmol/h: Yn

0.12; Ly = 0.078; Tp
1.01 x. If the liquid on the tray is well mixed, what will be the murphree tray efficiency ?

06. The equilibrium relations is y =

۸446
8:-33.2%
66

72.8%

Correct Answer:-Question Cancelled

‘Question49:-For the determination of number of theoretical stages required for the given separation using McCabe and Thiele method. What is slope of -line, if the feed is saturated
liquid ?

Correct Answer:- Option-D

‘QuestionS0:-One thousand kilograms of an aqueous solution containing 50 mass % acetone is to be extracted using 800 kg of chlorobenzene containing 0.5 mass % acetone as the
solvent in a single-stage extraction unit. The graphical solution for the extraction unit is given below, what is the fraction of solute removed (in %) ?

ALTLT

8:7

೦-935

D:-83.5

Correct Answer:- Option-A
೦065010753 -100 ಓ of solid (on dry basis) is subjected to a drying process for a period of 2500 s. The drying occurs at the constant rate period with the drying rate as NV .= 1.0 x
19-3 ka/rn2s. The initial moisture content of the solid is 0.4 kg moisture/kg dry solid. The surface area available for drying 0.04 24 of dry solid. The moisture content at the end
Of the drying period is (in kg moisture/kg dry solid).

8௭015.

80

0.5

D:-0.30

Correct Answer:- Option-D

Questions2-Adsorption on zeolite is to be used for reducing a pollutant concentration in wastewater from 0.04 moliite to 0.008 moliitre. The adsorption isotherm at the operating
temperature can be expressed a5 4 ० 0, 025 whereq Is the pollutant concentration in solid (mol/g solid) and Cis the concentration in water (mol/itr). The minimum amount of
sold (in grams) required per litre of waste water is

0