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Mass Transfer

‘Absorption with chemical reaction’ is involved in the removal of__________________?

Mass Transfer /
‘Absorption with chemical reaction’ is involved in the removal of__________________?

A. Carbon dioxide from gaseous stream using alkaline solution
B. Benzol from coke oven gas using solar oil/wash oil
C. Ammonia from coke oven gas using refrigerated water
D. Tar from coke oven gas in primary gas coolers using chilled water

‘Absorption with chemical reaction’ is involved in the removal of__________________? Read More »

Mass Transfer

When adsorption hysteresis is observed, the desorption equilibrium pressure is _________________ that obtained by adsorption?

Mass Transfer /
When adsorption hysteresis is observed, the desorption equilibrium pressure is _________________ that obtained by adsorption?

A. Always lower than
B. Always higher than
C. Same as
D. Dependent on the system; can be either lower or higher than

When adsorption hysteresis is observed, the desorption equilibrium pressure is _________________ that obtained by adsorption? Read More »

Mass Transfer

______________ column is the most suitable for achieving the best performance for mass transfer operations involving liquid with dispersed solids ?

Mass Transfer /
______________ column is the most suitable for achieving the best performance for mass transfer operations involving liquid with dispersed solids ?

A. Wetted wall
B. Packed
C. Plate
D. Spray

______________ column is the most suitable for achieving the best performance for mass transfer operations involving liquid with dispersed solids ? Read More »

Mass Transfer

If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively ?

Mass Transfer /
If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively ?

A. [xD/(RD + 1)], [RD/(RD + 1)]
B. [RD/(RD + 1)], [xD/(xD + 1)]
C. [xD/(RD + 1)], [(RD + 1)/RD]
D. None of these

If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively ? Read More »

Mass Transfer