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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 3
1.
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in
greater degree of separation with a fixed number of trays
increased reboiler load
increased reflux ratio
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
__________ column is the most suitable for achieving the best performance for mass transfer operations involving liquid with dispersed solids.
Watted wall
Packed
Plate
Spray
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Deairation (removal of O2) of water is done by
rectification
absorption
ion-exchange
adsorption
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Make up water is supplied during cooling tower operation to compensate for water losses due to
evaporation
blowdown
entrainment
all (a), (b)&(c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Pick out the wrong statement.
The mole fraction of solute is directly proportional to the molality of a 'dilute' solution.
For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is nonlinear in the case of steady state unimolal unidirectional diffusion.
Azeotropes obey Raoult's law at all temperature.
The relative volatility of a binary mixture at the azeotropic composition is 1.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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