Chemical Engineering MCQs

A. Increases
B. Decreases
C. Remains unchanged
D. Depends on relative volatility

A. Extracting solvent is cheaply & abundantly available
B. One of the liquid components is heat sensitive
C. Viscosity of liquid components is very high
D. One of the liquid components has very high affinity towards the solvent

A. Fractional crystallisation
B. Liquid extraction
C. Absorption
D. Evaporation

A. Ri = re/(1 – re)
B. Ri = (1 – re)/re
C. Ri = re
D. Ri = re/(1 + re)

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. X/(x + 1)
B. X/(1 – x)
C. (1 + x)/x
D. (1 – x)/x

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

A. Liquid-liquid extraction
B. Solid-liquid extraction
C. Multi-component absorption with chemical reaction
D. Multi-component distillation

A. A pure component
B. A binary mixture
C. A ternary mixture
D. Partially miscible ternary system

A. Decreases
B. Increases
C. Depends on the extent of heating
D. Remain unchanged