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Mass Transfer

Mass Transfer
When both the fluids flow concurrently in an absorber, the slope of the operating line is

-1
+ ve
1
- ve

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Toor and Marchello
Danckwerts
Stefan
Fick

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Mass Transfer
If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

> 100
< 100
100
None of these

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Mass Transfer
If moisture content of solid on dry basis is X, then the same on wet basis is

(X + 1)/X
(X - 1)/X
X/(X - 1)
X/(X + 1)

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Mass Transfer
Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty?

Wetted wall column
Bubble cap column
Sieve plate column
Randomly packed column

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Mass Transfer
Pick out the system with maximum boiling azeotrope at 1 atm.

Benzene-ethyl alcohol
None of these
Acetone chloroform
Ethyl alcohol-water

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