Q501
Open questionIn distillation columns, the number of bubble caps per tray primarily depends upon the
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Chemical Engineering · all questionsMass Transfer
Mass Transfer
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Q502
Open questionGaseous diffusivity at atmospheric pressure is of the order of __________ cm2/second.
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Q503
Open questionFor gas absorption, low viscosity solvents are preferred, because of their
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Q504
Open questionAccording to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)
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Q505
Open questionThe change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the
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Q506
Open questionPick out the wrong statement:
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Q507
Open questionOn moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in
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Q508
Open questionSteam distillation is not recommended to be used, if the
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Q509
Open questionChemisorption compared to physical absorption has
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Q510
Open questionAt a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent.
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Q511
Open questionWhat is the reflux ratio at total reflux?
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Q512
Open questionThe diffusivity (D) in a binary gas mixture is related to the pressure (P) as
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Q513
Open questionWhich of the following same diameter columns gives lowest pressure drop per unit height?
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Q514
Open questionReverse osmosis is also called
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Q515
Open questionHeat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.
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Q516
Open questionMass transfer co-efficient 'K' according to penetration theory varies with mass diffusivity as
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Q517
Open questionFor absorbing a sparingly soluble gas in a liquid
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Q518
Open questionDried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.
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Q519
Open questionThe equipment used in the extraction of highly corrosive radio active liquids is
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Q520
Open questionThe value of for steady state molecular diffusion of gas 'A' through non-diffusing gas 'B' is
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