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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 5
6.
Humidification involves mass transfer between a pure liquid phase and a fixed gas, which is
insoluble in the liquid
soluble in the liquid
non-ideal in nature
at a fixed temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
__________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid.
Dew point
Bubble point
Dry bulb temperature
Wet bulb temperature
Answer: Option
Explanation:
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8.
Rate of leaching increases with increasing
temperature
viscosity of solvent
pressure
size of the solid
Answer: Option
Explanation:
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9.
An azeotropic mixture is a __________ mixture.
binary
ternary
constant boiling point
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Pick out the wrong statement.
In the McCabe-Thiele diagram for binary distillation, vertical feed line represents saturated liquid feed and horizontal feed line represents saturated vapour feed.
In small columns, local efficiency is larger than Murphree efficiency; in large columns local efficiency is smaller than Murphree efficiency.
For Laminar flow over a plate of length L, the local mass transfer co-efficient at a distance L from the leading edge is 1.5 x 10-2m/s. Then the average mass transfer co-efficient for the plate is 2 x 10-2m/s.
The concentration and hydrodynamic boundary layers over a flat plate are of equal thickness, if Schmidt number is equal to unity.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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