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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 11
31.
Which of the following parameters remains almost constant during adiabatic saturation of unsaturated air ?
Dry bulb temperature
Dew point
Wet bulb temperature
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Coffee is prepared from coffee beans by leaching with
cold water
hot water
dilute hot caustic solution
naphtha
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Gaseous diffusion co-efficient increases with increase in the
pressure
temperature
both (a) & (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature)
increases
remains unchanged
decreases
decreases linearly
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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