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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 11
21.
For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same.
unsaturated surface
constant rate
both (a) and (b)
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
What is the degree of freedom of an absorption process in which only one component is transferred between phases ?
3
2
4
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Sticky material can be dried in a __________ dryer.
tray
rotary
fluidised bed
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Langmuir equation is associated with
leaching
adsorption
steam distillation
multicomponent absorption.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
During the constant rate period of drying of a solid,
increased air humidity decreases the rate of drying.
increasing the air temperature decreases the drying rate.
surface evaporation of unbound moisture occurs.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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