Test: Mass Transfer - 2 - Chemical Engineering MCQ

In case of an absorber, the operating

Which of the following plays an important role in problems of simultaneous heat and mass transfer ?

As the reflux ratio in a distillation coloumn is increased from the minimum, the

Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve)

A plait point is the point on the solubility curve, where the tie line reduces to a point. What is the number of plait point for a ternery system containing twopairs of partially miscible liquids ?

Which of the following remains constant during sensible cooling process ?

Physical absorption is

Make up water is required in a cooling tower to replace the water lost by

Which of the following quantities need not be fixed before starting the design of a co-current absorber ?

Mass transfer co-efficient of liquid is

Absorption accompanied with chemical reaction is exemplified by the absorption of

Which of the following unit operations makes use of Thiele-Geddes equation ?

Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty ?

The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

Chemisorption (chemical adsorption) is

The rate of solid-liquid extraction is limited by the

Raoult's law applies to the

In distillation columns, the number of bubble caps per tray primarily depends upon the

In distillation, overhead product contains

With increase in pressure, the relative volatility for a binary system

Low viscosity absorbent is preferred for reasons of

Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as