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Mass Transfer

Mass Transfer
At 750°K and 1 atm, the approximate value of Schmidt number for air is

0.1
1
0.01
10

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Mass Transfer
L/mG is the expression for

Slope of operating line in stripper
Absorption factor
Brinkman number
Slope of operating line in absorber

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Mass Transfer
Reboiler is considered as one theoretical plate, because

Vapour is recycled to the column
None of these
Of the assumption that vapour and liquid leaving the reboiler are in equilibrium
Reboiler itself contains one plate

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Mass Transfer
A slurry is to be dried to produce flaky solid. Which dryer would you recommend?

Rotary dryer
Spray dryer
Dielectric dryer
Drum dryer

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Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.33
Re
Re0.53
Re0.83

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Mass Transfer
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in

Increased reflux ratio
Increased reboiler load
None of these
Greater degree of separation with a fixed number of trays

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