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Mass Transfer

Mass Transfer
Berl saddle made of carbon cannot be used for

Oxidising atmosphere
H₂SO₄
Alkalis
SO₂

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Mass Transfer
If f is defined as above, then which of the following applies to a feed at dew point?

F > 1
F = 1
F < 1
0 < f < 1

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Mass Transfer
The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec.

0.25
0.0025
2.5
1.25

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Mass Transfer
Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Stanton
Sherwood
Schmidt
Peclet

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Mass Transfer
With increase in the concentration of the adsorbate, the integral heat of adsorption

Remains unchanged
Increases
May increase or decrease ; depends on the type of adsorbate
Decreases

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Mass Transfer
At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbant

Decreases
Increases exponentially
Increases
Remains unchanged

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