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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 2
41.
Which of the following binary systems is an example of a maximum boiling azeotrope ?
Water-hydrochloric acid.
Acetone-carbon disulphide.
Water-ethyl alcohol.
n-heptane-n-octane.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
(NRe . NSc) is termed in mass transfer operation as the __________ number.
Stanton
Sherwood
Peclet
none of these
Answer: Option
Explanation:
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43.
The binary diffusivity in gases and liquids vary respectively as
T3/2 and T
T and T3/2
T and T3/2
T3/2 and T
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Pick out the correct statement.
The slope of the stripping line is always less than unity.
For a given separation in a binary distillation column, with increase in reflux ratio (above the minimum reflux ratio), the fixed cost of the distillation column first increases and then decreases.
In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux.
Kremsor-Brown-Souder's equation is used to calculate the efficiency of a plate tower.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Pick out the correct statement.
Dialysis process is used for the production of fresh water from brine.
Electrodylsis is used in the manufacture of NaOH.
Electrodylsis is used for the refin-ning/purification of petrol.
both (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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