Related Questions

HETP is numerically equal to HTU, only when the operating line
A Lies below the equilibrium line
B Lies above the equilibrium line
C And equilibrium lines are parallel
D Is far from the equilibrium line
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.
A 0.1-0.2
B 0.2-0.5
C 0.4-0.9
D 1.2-1.5
Which of the following quantities need not be fixed before starting the design of a co-current absorber?
A Heat gain or loss
B Flow rate of entering liquid
C Flow rate of gas
D None of these
In case of an absorber, the operating
A Line always lies above the equilibrium curve
B Line always lies below the equilibrium curve
C Line can be either above or below the equilibrium curve
D Velocity is more than the loading velocity
Which of the following acts as an insulator against heat, cold and as a shock-absorber in the body?
A Dermis
B Epidermis
C Subcutaneous fat layer
D None of the above
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is
A $$\frac{{\text{L}}}{{\text{G}}}$$
B $$\frac{{\text{G}}}{{\text{L}}}$$
C Always
D None of these
For the same system, if the same liquid used in an absorber is decreased, the tower height will
A Increase
B Decrease
C Remain unaffected
D Decrease or increase ; depends on the type of liquid
For a single component absorber, the operating line is straight only when plotted in term of __________ units.
A Partial pressure
B Mole ratio
C Mole fraction
D None of these
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is
A 0
B ∞
C -ve
D +ve
Desirable value of absorption factor in an absorber is
A 1
B > 1
C 0.5

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