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Chemical Engineering · all questions

Mass Transfer
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JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by

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The minimum liquid rate to be used in an absorber corresponds to an operating line

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Which of the following is an undesirable property for an absorbing solvent?

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The operating line for an absorber is curved, when plotted in terms of

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In most of the mechanically agitated liquid-liquid extractors, baffles or horizontal compartmental plates are provided, which helps in

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Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time)

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In paper industry, paper is dried in a __________ dryer.

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Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer.

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As per Gilliland's equation, the diffusivity is

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H2S present in naphtha reformed gas is removed by absorbing with

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Pick out the wrong statement. Raoult's law does not apply, when the

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__________ equation applies to diffusivities in liquids.

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Pick out the wrong statement:

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What is the degree of freedom of an absorption process in which only one component is transferred between phases?

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Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

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Schmidt number is given by

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Which of the following unit operations makes use of Thiele-Geddes equation?

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Solvent used in extractive distillation

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Solvent used in extractive distillation

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__________ column is used in gas absorption process.

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