Chemical Engineering MCQs

Page No. 656

Pick out the system with minimum boiling azeotrope at 1 atm ?


aBenzene-toluene

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bEthyl alcohol-water

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cHydrochloric acid-water

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dAll A., B. and C.

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View Answer Ethyl alcohol-water

The film penetration model of mass transfer was enunciated by______________________?


aGilliland

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bToor and Marcello

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cStefan

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dFick

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View Answer Toor and Marcello

(NRe . NSc) is termed in mass transfer operation as the ______________ number?


aStanton

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bSherwood

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cPeclet

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dNone of these

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View Answer Peclet

In McCabe-Thiele method, at infinite reflux ratio________________?


aThe overhead product is minimum

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bBoth the operating lines coincide with diagonal

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cBoth A. and B.

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dNeither A. nor B.

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With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux__________________?


aIncreases

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bIncreases

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cRemain same

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dMay increase or decrease; depends on system

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View Answer Increases

The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called__________________?


aDecoction

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bPercolation

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cElutriation or elution

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dNone of these

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The recovery of penicillin from the acidified fermentation broth is done by__________________?


aDistillation

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bEvaporation

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cAbsorption

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dLiquid extraction

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View Answer Liquid extraction

Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be_________________?


a1

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b> 1

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c< 1

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d≤ 1

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View Answer > 1

Molarity is defined as the number of gm moles of solute per ________________ of solvent?


aLitre

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bkg

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cgm

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dc.c

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View Answer Litre

Adsorption is a unit operation which generally involves _______________ systems?


aLiquid-solid

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bGas-solid

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cFluid-solid

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dSolid-solid

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View Answer Fluid-solid

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