A. D ∝ P0.5
B. D ∝ 1/P0.5
C. D ∝ 1/P
D. D ∝ 1/P1.5
Related Mcqs:
- The diffusivity D. in a binary gas mixture is related to the pressure (P) as__________________?
A. D ∝ P0.5
B. D ∝ 1/P0.5
C. D ∝ 1/P
D. D ∝ 1/P1.5 - The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of________________?
A. Newtonian liquids
B. Non-Newtonian liquids
C. Ideal gases
D. Real gases - The diffusivity D. in a binary gas mixture is related to the temperature (T) as________________________?
A. D ∝ T
B. D ∝ T0.5
C. D ∝ T1.5
D. D ∝ T2 - The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = _________________?
A. 1
B. 0.5
C. 10
D. 0 - If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is____________________
A. 0
B. 1
C. 1 - In case of gases, the binary diffusivity is proportional to (where, P = pressure) ?
A. P
B. 1/P
C. 1/√P
D. √P - The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be ______________ °C ?
A. 25
B. > 25
C. < 25
D. – 25 - The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be ______________ °C?
A. 25
B. > 25
C. < 25
D. – 25 - The relative volatility of a binary mixture at constant temperature _________________ the total pressure?
A. Decreases with increase in
B. Increases with increase in
C. Is independent of
D. None of these - For a binary mixture distillation process, the degree of freedom is 2. However, if the pressure is fixed in this process, the number of independent variables in this process will be ___________________?
A. 1
B. 0
C. 2
D. 3
