Mass Transfer Practice Test 3

1. The fraction of volume occupied by the gas-liquid mixture in the equipment/vessel to the volume occupied by the gas is

2. Guess the interfacial area of a bubble with a gas volume of 2.5 x10^-3 cubic meters and diameter of 0.125 cm.

3. Find the value of y in an ideal single stage absorber is used to remove ammonia from gas with water as solvent. Its representation is given below

Here,
y0=0.2, the molar gas flow rates of liquid and gas mixture in (moles/sec) are 4 and 2. The equilibrium relation between y and x is given by y = 0.2x. The solvent water is pure.

4. In a Bubble column, if the velocity of the gas is low, then the bubble diameter is equals to______

5. Diffusion of components between the phases at equilibrium is

6. Find the driving force at the point (P) in the equilibrium distribution curve given below.

7. For a better stage efficiency, must have large interfacial surface and low mass transfer co-efficient.

8. Which one is having a maximum melting point?

9. Which one is having a minimum melting point?

10. Name of the line PR and QT

If X, Y – are represented in mole ratio