Chemical Engineering :: Mass Transfer
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The falling rate period in the drying of a solid is characterised by
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In which of the following unit operations, the selectivity is an important parameter ?
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Which of the following is an undesirable characteristic for the solvent used in gas absorption ?
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Which of the following equipments is not used for liquid dispersion ?
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Diameter of raschig rings used in packed tower in industry is normally around __________ inches.
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The diffusion co-efficient in m2 /s. of acetic acid in benzene (liquid in liquid) is
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Pick out the wrong statement.
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In case of non-ideal gases and liquids, the molal diffusivity
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Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid )
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A.
The Reynolds analogy for mass transfer is given by Lewis relation and is applicable, when Schmidt number is one.
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B.
Sherwood number for flow in pipes can be expressed as the ratio of the concentration gradient at wall to the overall concentration difference.
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C.
According to film theory for equimolar counter diffusion, the mass transfer coefficient is given by DAB(b)P - 3, Q - 2
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D.
The z-component of the total mass flux of a component A in binary mixture of A and B is given by - Dab'.dCA/dz.
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