The reciprocal of stripping factor is termed as ________________________?

Related Mcqs:

1. In gas-liquid contact operation, the number of ideal stages, N = (xa – xb)/(xb – x*b). This is true when the stripping factor ‘S’ is ________________?

   A. S > 1
   B. S < 1
   C. S = 1
   D. S = ∞

2. In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed____________________?

   A. q > 1
   B. q < 1
   C. q = 1
   D. q = 0

3. For stripping of a gas in a counter current stripper, the operating line _____________________?

   A. Lies above the equilibrium curve
   B. Lies below the equilibrium curve
   C. Can lie above or below the equilibrium curve
   D. Is always parallel to the equilibrium curve

4. In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of _______________ is zero?

   A. Interface
   B. Gas phase
   C. Liquid phase
   D. All A , B. & C.

5. In stripping section of continuous distillation column, the_______________________?

   A. Liquid is stripped of high boiler
   B. Liquid is enriched with high boiler
   C. Vapour is stripped of low boiler
   D. None of these

6. In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at ________________ reflux ?

   A. Total
   B. Minimum
   C. Operating
   D. Maximum permissible

7. Henry’s law states that the ________________________?

   A. Partial pressure of a component over a solution is proportional to its mole fraction in the
   liquid
   B. Partial pressure of a component over a solution is proportional to the mole fraction in the
   vapour
   C. Vapour pressure is equal to the product of the mole fraction and total pressure
   D. Partial pressure is equal to the product of the mole fraction and total pressure

8. At constant pressure, with increase of temperature, the dew point will ________________________?

   A. Increase
   B. Decrease
   C. Remain unchanged
   D. Increase/decrease; depends on the temperature

9. Detergent solution is dried to a powder in a ________________________?

   A. Spray dryer
   B. Spouted bed dryer
   C. Tunnel dryer
   D. Pan open to atmosphere

10. If f = moles of vapour present per mole of feed, then the slope of feed line is (McCabe- Thiele method) ________________________?

    A. (1 – f)/f
    B. – (f – 1)/f
    C. -1/f
    D. -f/(1 – f)