A. S2/S1
B. S1/S2
C. S1 – S2
D. S1 × S2
Related Mcqs:
- The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line) ?
A. L/mG
B. G/mL
C. mL/G
D. LG/m - In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG ______________ the absorption factor?
A. Increases with increase in
B. Is one at unity value of
C. Both A. and B.
D. Neither A. nor B. - The individual mass transfer co-efficients (moles/m2s) 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 ?
A. Liquid side
B. Gas side
C. Interfacial
D. Both liquid and gas side - The individual mass transfer co-efficients (moles/m2s) 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 ?
A. Liquid side
B. Gas side
C. Interfacial
D. Both liquid and gas side - On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in______________________?
A. Greater degree of separation with a fixed number of trays
B. Increased reboiler load
C. Increased reflux ratio
D. None of these - Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be_________________?
A. 1
B. > 1
C. < 1
D. ≤ 1 - In case of absorption, both the operating and equilibrium lines will be straight for______________?
A. Isothermal operation
B. Dilute solutions
C. Dilute solutions and isothermal operation
D. None of these - The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is_____________________?
A. 0
B. ∞
C. -ve
D. +ve - If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively ?
A. [xD/(RD + 1)], [RD/(RD + 1)]
B. [RD/(RD + 1)], [xD/(xD + 1)]
C. [xD/(RD + 1)], [(RD + 1)/RD]
D. None of these - If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is___________________?
A. L/G
B. G/L
C. Always < 1
D. None of these
