What is the reflux ratio at total reflux ?
A. Zero
B. Infinity
C. Unity
D. Data insufficient
What is the reflux ratio at total reflux ? Read More »
Mass Transfer A. Zero
B. Infinity
C. Unity
D. Data insufficient
What is the reflux ratio at total reflux ? Read More »
Mass Transfer A. P
B. 1/P
C. 1/√P
D. √P
In case of gases, the binary diffusivity is proportional to (where, P = pressure) ? Read More »
Mass Transfer A. Decreases
B. Increases
C. Depends on the extent of heating
D. Remain unchanged
A. A pure component
B. A binary mixture
C. A ternary mixture
D. Partially miscible ternary system
A. Liquid-liquid extraction
B. Solid-liquid extraction
C. Multi-component absorption with chemical reaction
D. Multi-component distillation
Which of the following unit operations makes use of Thiele-Geddes equation ? Read More »
Mass Transfer A. 0
B. 1
C. > 1
D. < 1
A. X/(X + 1)
B. X/(1 – X)
C. (1 + X)/X
D. (1 – X)/X
A. Water has a high latent heat of evaporation
B. Lewis number is close to unity
C. They are always equal under all circumstances
D. Solubility of the components of air in water is very small
A. Ri = Re/(1 – Re)
B. Ri = (1 – Re)/Re
C. Ri = Re
D. Ri = Re/(1 + Re)
A. Fractional crystallisation
B. Liquid extraction
C. Absorption
D. Evaporation