Chemical Engineering :: Mass Transfer
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For a distillation column operating at minimum reflux, the
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A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))
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Flash distillation is suitable for the separation of components
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In Mcabe-Thiele method, at infinite reflux ratio
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Use of packed towers for distillation is generally limited to the
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Pick out the wrong statement.
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Which of the following decreases during evaporative cooling process with recirculated water supply ?
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Laboratory determination of the dif-fusivity of vapor is done by __________ method.
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The minimum liquid rate to be used in an absorber corresponds to an operating line
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A.
The binary diffusivity in liquids is of the order of 10-5 cm2 /sec.
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B.
Molecular diffusion in solid is much faster than that in liquids.
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C.
Particles movement from higher concentration to lower concentration takes place in diffusion process.
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D.
According to Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary.
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