Mass Transfer Mock Test 3

10%

Question 1 of 10

1. At the Interphase, the Interphase concentration of the component in both phase phases have equal chemical potential is due to differential concentration.

True

False

Question 1 of 10

Question 2 of 10

2. ______________ is defined as the number of equilibrium stages to the number of real stages.

Fractional overall efficiency

Overall efficiency

Stage efficiency

Murphree stage efficiency

Question 2 of 10

Question 3 of 10

3. (Yn- Yn-1)/ (Yn*-Yn-1) is

Tray

Stage

Murphree stage

Fractional overall

Question 3 of 10

Question 4 of 10

4. In a Sparged vessel of area 50 cm, the flow rate of the gas is 2 cubic meters per second then the value of superficial gas velocity in meters per second is

Question 4 of 10

Question 5 of 10

5. The driving force line between the operating line and the equilibrium line depends on

Relative diffusion resistance

Cumulative resistance

Relative mass resistance

None of the mentioned

Question 5 of 10

Question 6 of 10

6. The main purpose of cascades is

To get maximum conversion

To increase mass transfer rates

None of the mentioned

To get more efficiency

Question 6 of 10

Question 7 of 10

7. Find the slope of the operating line from the figure below.

If, Ls,Gs- non diffusing solvent
X,Y- Concentrations in mole ratio
x,y- concentration in mole fraction

Ls/Gs

–Gs/Ls

Gs/Ls

–Ls/Gs

Question 7 of 10

Question 8 of 10

8. What is the melting point of palladium?

1827 K

1727 K

1627 K

1527 K

Question 8 of 10

Question 9 of 10

9. The figure given below is a single stage ideal co- current process of solute transfer from liquid to gas phases.

True

False

Question 9 of 10

Question 10 of 10

10. Ideal stages are also known as

Equilibrium or Theoretical stages

Equilibrium or Actual stages

Differential or Actual stages

Differential or Theoretical stages

Question 10 of 10