Schmidt number is given by ___________________?

Related Mcqs:

1. At 750°K and 1 atm, the approximate value of Schmidt number for air is_________________?

   A. 0.01
   B. 0.1
   C. 1
   D. 10

2. The Schmidt number which is defined as, μ/ρ D, is the ratio of the_____________________?

   A. Momentum diffusivity to the mass diffusivity
   B. Thermal diffusivity to the mass diffusivity
   C. Momentum diffusivity to the thermal diffusivity
   D. None of these

3. In physical terms, Schmidt number means _________________?

   A. Thermal diffusivity/mass diffusivity
   B. Thermal diffusivity/momentum diffusivity
   C. Momentum diffusivity/mass diffusivity
   D. Mass diffusivity/thermal diffusivity

4. Schmidt number and Lewis number for pure air at atmospheric conditions are respectively__________________?

   A. < 1 and ≈ 1
   B. 1 and 0
   C. > 1 and ≈ 1
   D. 0 and ≈ 1

5. H2S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H2S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in meters) corresponding to an operating line given by, y = 5x + 0.001 is ______________________?

   A. 2.0
   B. 1.56
   C. 1.0
   D. 0.56

6. In triangular co-ordinates, the ternary composition point falls ___________________ of the triangle?

   A. In the corners
   B. Inside
   C. On the sides
   D. None of these

7. Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the ___________________ moisture ?

   A. Unbound
   B. Critical
   C. Free
   D. Bound

8. ___________________ extractor uses centrifugal force for separating the two phases?

   A. Treybal
   B. Scheibel
   C. Podbielniak
   D. None of these

9. The-relative volatility for separation of a non-ideal binary mixture by distillation should be ___________________?

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

10. The binary diffusivity in gases does not depend upon the ___________________?

    A. Pressure
    B. Temperature
    C. Nature of the components
    D. None of these