Chemical Engineering MCQs

A. Of the assumption that vapour and liquid leaving the reboiler are in equilibrium
B. Vapour is recycled to the column
C. Reboiler itself contains one plate
D. None of these

A. Flow rate of the entering gas
B. Composition of the entering liquid
C. Terminal concentrations of gas stream
D. None of these

A. Humidification only
B. Heating only
C. Both heating and humidification
D. Evaporative cooling

A. Higher molecular weight is adsorbed in preference to a gas of low molecular weight
B. High critical temperature is adsorbed in preference to a gas of low critical temperature
C. Low volatility is adsorbed in preference to a gas of high volatility
D. None of these

A. < 150
B. 200-330
C. > 500
D. > 1000

A. As the acetone concentration increases, the solubility curves approach each other
B. Both the phases become identical at a particular common point on both the solubility curves
CalLed the plait point
C. The distribution curve which is a plot between x (acetone concentration in one phase) and y

A. Sparingly soluble
B. Highly soluble
C. A pure substance
D. A mixture

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

A. Nsc = 1
B. Nsc = npr = nle
C. Npr = nle
D. Nsc = nle

A. Relative humidity decreases
B. Relative humidity increases
C. Wet bulb temperature decreases
D. Both b. and c.