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

Bubble cap column
Sieve plate column
Wetted wall column
Randomly packed column

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Mass Transfer
For a ternery mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a __________ of the equilateral triangular co-ordinates.

Binary mixture is represented by the apex
Binary mixture is represented by any point inside
Pure component is represented by the apex
Ternery mixture is represented by the sides

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Mass Transfer
Dew point of an air-water vapor mixture

At constant humidity & total pressure is fixed
All of the listed here
Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve
Decreases with decrease in pressure

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