Mass Transfer
With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible.

Increases linearly
Remains same
Decreases
Increases

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Mass Transfer
An example of elutioh is

Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank
Separation of sugar from sugar beet by hot water
Dissolution of tannin out of tree barks by water
Recovery of vegetable oils from seeds

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Mass Transfer
Inside the distillation column, the

Liquids are not always at their bubble points
Pressure increases gradually from bottom to the top of the column
None of these
Driving force for the vapour flow is the pressure drop

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