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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 9
46.
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.
dry-bulb
wet-bulb
dew point
adiabatic saturation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is
100
10
5
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
The slope of 9-line is determined by the
reflux ratio
plate efficiency to be achieved
thermal condition of the feed
relative volatility.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
In steam distillation, the
temperature is 100°C.
temperature is more than 100° C.
product must be immiscible with water.
temperature is higher than the boiling point of either component.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Which of the following can be calculated theoretically using steam table and Dalton's law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known ?
Dew point
Humidity ratio
Wet bulb temperature
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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