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Mass Transfer

Mass Transfer
Leaching of coffee from coffee beans is done by

Lime water
Hexane
Dilute H₂SO₄ (hot)
Hot water

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Mass Transfer
__________ extractor is used for the concentration of radioactive nuclear waste.

Seive plate
Mixer-settler
None of the listed here
Pulsed column

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Mass Transfer
In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is

S = ∞
S > 1
S < 1
S = 1

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Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

0.8 to 1.2
0.5 to 0.8
1.25 to 2.0
2.5 to 3.5

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Pulse
Packed
Sieve plate
Bubble cap

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Mass Transfer
In case of absorption, both the operating and equilibrium lines will be straight for

Dilute solutions and isothermal operation
Isothermal operation
Dilute solutions
None of these

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