Test: Mass Transfer - 7 - Chemical Engineering MCQ

Freundlich equation applies to the adsorption of solute from

For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an

The diffusivity (D) in a binary gas mixture is related to the pressure (P) as

A slurry is to be dried to produce flaky solid. Which dryer would you recommend ?

Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent ?

In gas-liquid contact operation, the number of ideal stages, . This is true when the stripping factor 'S' is

The cooling effect in a cooling tower can not be increased by

The value of N_A/(N_A + N_B) for steady state molecular diffusion of gas 'A' through non-diffusing gas 'B' is

The humid volume may be increased by increasing the

Pick out the wrong statement

When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is __________ distillation.

Large scale drying of wheat is done in a __________ dryer.

Azeotropic distillation is employed to separate

The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes

Use of natural draft cooling tower is practised, when the air has low

Pressure drop through plate tower as compared to that through packed tower, for the same duty will be

Dimension of mass diffusivity is the same as that of

Dorr thickener is an equipment used for

Steam distillation is used to separate

In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed