Chemical Engineering :: Mass Transfer
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Raschig ring made of procelain cannot be used for treating concentrated
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H2S present in naphtha reformed gas is removed by absorbing with
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During constant rate drying period, vaporisation rate per unit drying surface area
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Pick out the wrong statement.
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In rectifying section of a continuous distillation column, the
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For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams
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According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to
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A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is
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Minimum reflux ratio in a distillation column results in
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Flooding in a distillation column is detected by a sharp
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A.
Mass transfer co-efficient does not account for gase-liquid diffusion.
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B.
Diffusion co-efficient and mass transfer co-efficient are not same in any mass transfer operation.
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C.
Contacting cold vapor-gas mixture with hot liquid exemplifies humidification process.
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D.
Contacting cold liquid with warm vapor-gas mixture exemplifies dehumidification process.
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