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Mass Transfer

Mass Transfer
According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)

μ
√μ
μ²
1/μ

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

Dielectric dryer
Rotary dryer
Spray dryer
Drum dryer

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Mass Transfer
In triangular co-ordinates, the ternery composition point falls __________ of the triangle.

On the sides
None of these
Inside
In the corners

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Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

Both Pressure & Temperature
Pressure
Temperature
None of the listed here

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Mass Transfer
For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).

43835
> 500
22190
200-300

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Mass Transfer
The relation, Sc = Pr = 1, is valid, when the mechanism of __________ ansfer is same.

Heat and momentum
Heat and mass
Heat, momentum and mass
Mass and momentum

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